My father and I would like to thank you very much for helping us correctly understand and diagnose our 1988 560SL I'm currently restoring. There is a lot of CIS information out there but 90% of them didn't help us understand the operation of this complex design. Thank you again for helping us and others! sincerly Mark and William.
I have a 94 w124 problem it starts up fine in the morning but if I take a trip to the store and try to start it again … I have to step on the gas pedal to get it to start up again. I also smell a gas on the oils dip stick.
Welcome What causes the engine to vibrate more when it is hot than cold? I ask you to make a video and mention all the reasons that lead to engine vibration
I have a 89 560 SL. The fuel distributor needs to be rebuilt There is no one in our area capable. Can you rebuild it if it is shipped to you? Your videos are outstanding. I’m a car guy but not on these. And don’t want to risk it. Let me know. Thanks.
Hello, Jim C and thank YOU so much for your question(s), we want to answer you as quickly as possible. By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre. If you are already a $10 member please mention along with your question.
Hi Pierre happy New year I have currently purchased W126 420 Sel when driving it yesterday while sitting at a red light the engine stopped through which I starit again and carried on down the road then it cut out again while driving the third time it cut out it would not start again any suggestion
what would happen if the diaphragm is compromised? my air flow meter at times is all resistance and i hear no hissing sound of fuel spraying into the manifold
Hello, my 87 560sl is having problems with the FD. Car runs super rich. I changed the FD and it ran amazing. Then after sitting in the afternoon. It stopped running again and started running horribly. Any ideas?
Hello quick question for you. Do you rebuild fuel distributors? I have a Mercedes 1992 Mercedes 300E with the 2.6 liter M103 if so where are you located? Thanks Walt,
Hi guys, What other cars during that period use? Is this fuel distributor too complicating that renders it ineffective and unrepairable. Dont think most mechanics know how it works now, and how to service this part. So w124 with M103 engines will be harder to maintain?
High I have a 1988 420 sel Mercedes Benz and I'm not to sure if the timing is off or what the problem is..one day it was running just fine and I went to put gas and after doing so I couldn't get it to start back up it turns over and sounds like it wants to start but won't .. I tried putting gas in the intake to see if it works start and nothing ...it has spark and the fuel pump is pimping gas to the front but won't start...plz help me
Pierre, also this only occurs on hot restart and when ambient temps are hot,no hesitation no trouble on starting cold and only 50, miles on this car. Injectors,caps,rotors,plungs ,EHA valve and Idle control valve new. Shop told me intake leak was caused and after repair, it still did same thing. Any suggestions,comment would be greatly appreciated. Last but certainly not least,excellent videos and keep up the great work. Regards from Calgary ,Canada
Hi Pierre I have a 1985 380sl. It was running and iddling hard but it drives. I messed up with the adjusting fuel/air mixture and now it wont start. I have a multimeter for duty cycle but how can I get it back to the original setting? Let me know if u have done it in tha pass Thanks
Aloha Pierre I have a 1990 420SEL with fuel issues that line up exact with what this 3 part video speaks of. I attempted to replace the seals and diaphragm that come with the simple kits but made it worse. Can you recommend a reputable place where I can purchase the fuel distributor and actuator? Any help is appreciated. Mahalo
Can you run the fuel pump on a separate line whit a different relay to only be on the key position to run . The fuel pump runs constant wen the car is running anyway and is not control by ECU is a independent system if you get a good relay and connected properly it should run wright???
technically you could....i have taken the ecu out of the equation before..you just need to change the trigger wire from an ECU wire to an ignition hot.
excellent video, i'm just curious how to isolate a crank no start to a distributor? ie how can i find out the distributor is or isn't causing the problem. thanks
I take it you are referring to the electronic position sensor in the 1976-85 distributor. The only way to really check this is with an ohm meter. if the sensor is tootal open, then it's bad. These rarely fail. I find the ignituion control unit is usually the issue.
Hi. I've got an 83 MB 380SL. The fuel distributor is bad and I'm gonna get a new one. The part that you have looks very similar to mine. Does your connect to some below it like an airflow meter or something like that? I didn't know if this needs to be replaced in addition to the distributor. Thanks
Hi, I once bought a used 1974 450Slc for $1200 in 1999 kept it until 2002 I ended up donating it all because the car did not go forward nor in reverse, I towed it to a Mercedes dealer and they could not figure it out at the time, I assumed it would be the tranny, the car drove very nice I replaced the injectors with new Bosch $2000 replacements at the time at a Mercedes dealer. The car when I bought it had a potent odor of fuel in the interior of car every time I drove it . I would like to get a used 380 SL which year or years do you recommend .
Hi, do you have a video on W107, CIS hot starting issues and fuel pressure testing? My 1979 450sl is not holding fuel pressure when I shut it off and is very hard to start once it is hot.
I have a question. How about surging idle (warmed up, cold, and/or at a stop light) and how to go about where to look? The car is a 87 190e 2.3-16V Thank you
Hello, I recently bought a 1989 190e 2.6 Mercedes Benz it idles but when I give it gas it turns off I replaced spark plugs and rotor and also cleaned the distributor cap now I think it's a fuel problem either distributor or pump or filter please help
it sounds to me like the electrohydraulic actuator is either bad or has a blocked screen. The EHA is an expensive part, and when it fails it can cause such a lean mixture that the engine will not rev beyond 1100 rpm. you may also have a blocked catalytic converter, or you may hav a fuel distributor issue...the fuel distributor can be tested using pressure gauges, see link below: www.toolsource.com/fuel-injection-test-sets-c-1321_182_184/cis-kjetronic-fuel-injection-tester-p-91537.html?sourceid=googleps&gclid=CjwKCAiArK_fBRABEiwA0gOOc18T4YSI0OWnnOyxApG9PWZRpUlq-zXbQYNlpNUTyWJhaser5271-xoC5jwQAvD_BwE
Hi Pierre, Great videos,Hope you can guide me I have a 1986 560sl starts easily and runs smooth with no hesitation upon acceleration,warms up in about 3-4 minutes idles a little rough and has huge hesitation upon rapid throttle advance,I've changed plugs wires cap etc I've changed EHC fuel filter ,cold start valve any Thoughts?Rick
Hi RIck, please email me at mbownersforlife@bellsouth.net. It sounds like your Electrohydraulic actuator needs to be adjusted, or you may have a bad oxygen sensor- or likely, both
Im having an interesting problem on an 88 560sel, i changed the fuel pressure regulator, but now i am getting fuel SPRAYING out from in between the fuel distributor where the rubber membrane is, as well as high pressurized fuel coming from the center port at 1:33 is this normal?
Hello Rod Roddy, I am one of the moderators for the Pierre Hedary Mercedes Benz channel and I saw your comment. It seems as if you'd benefit from personalized attention for the problem. We have provided a way for owners to get the help they need. If it's okay, please visit the website: www.classicbenzsos.com so you can schedule a call from Pierre Hedary. --LauraH
Hi Pierre, I just ordered myself a refurbished fuel distributor for my 300TE 24v. The supplier failed to inform that I also needed to order a new EHA until after they sent me my distributor. Would driving with a faulty EHA cause damage to the distributor? Or is it imperative that I also replace it before driving the car?
Hello, +Peter Diseris and thank YOU so much for your question(s), we want to answer you as quickly as possible. By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre. If you are already a $10 member please mention along with your question.
Hi Pierre. 1976 450sl i refurbish fuel distributer in Germany with this ( german spob gmbh ) , now the car start good on idle but when pres accelerator the engine shutdown ( less fuel ) because the main lever don't go down to push plunger , if you push the main lever by your finger on the same time the engine continue working . any help pls .best regards,
@@mercedesclassicswithpierre1753 Thank you Pierre, I adjuste the mean lever and the engine start, now I will organise all vacuum lines and replacement fuel canister, and remove all cold intake and clean. Best regards,
I have a 560sl, when I open the key but no start, the fuel pump used to run for few seconds only, but now fuel pump keeps running. The car runs ok. Is my fuel pump relay bad? Since the car starts and runs I would think that the fuel regulator is good. Thx
The car has a slow start, a little longer cranking time, but it starts and runs. The only thing if you leave the key on ON position then fuel pumps keeps running. Thx
GOOD day PIERRE..DO YOU HAVE ANY IDEA HOW TO ADJUST E.H.A or they called it electromagnetic fuel actuator of 190e 2.3l mercedes benz engine. it is installed at the back side of the fuel distributor.my engine can't accelerate meaning no power ...thanks
Hello am Donald am having problems with my vehicle and i need solution to it the car doesn't start well engine is cold except I have to jug it before it starts when in motion it hesitate slightly I kindly ask for your help please
Hi! First, nice video. I have a question. I live in Ecuador and I own a 190E 2.0 manual trans. 4 cilinder. I've realized that my model does not have CO2 sensor neither lambda regulator. Pin 3 in X11 socket is empty and the ECU doen't even have the contact. How I calibrate the fuel-O2 without a measure? or to diagnose if EHA is bad. Thanks
The Pierre Hedary Mercedes-Benz Classic Specialist Hi, the car some times runs really well. But, without any aparent cause it started to hesitate and the spark plugs got very dark (rich).
Hi Pierre, k jetronic system bosch distroy all beauti of car brands come with, headche system, 1989 560Sl with low mileage, on idle suddenly rpm drop down and jump again to normal, after driving and stop car in hour + and still engine hot after start car and drive to inter the main road the car not accept acclirator jurcking and take minutes to build power, I charge everything fule filter, accumulator, injectors, I restore all intake with new rubber, I see some people swap to carburetor, or upgrade to EFI, any solution to make w107 reliable. Temperature day 105 -115 F. Best regards, Waiting your reply ASAP. sorry if there are spilling mistakes in advance.
Hello, +A1 Auto Services and thank YOU so much for your question(s), we want to answer you as quickly as possible. By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre. If you are already a $10 member please mention along with your question.
I have a 98 560sll that will not stay running . It starts and dies. New rebiult fuel dist . I am getting fuel to the dist. And fuel going to the injections but have lots of air
Hello Mason, I am one of the moderators for the Pierre Hedary Mercedes Benz channel and I saw your comment. It seems as if you'd benefit from personalized attention for the problem. We have provided a way for owners to get the help they need. If it's okay, please visit the website: www.ClassicBenzSOS.com so you can schedule a call from Pierre Hedary. --LauraH
Hello Pierre, Can you tell me what the voltage should be at the idle control valve,and at the EHA valve. Having hot restart and stumbling issues on a 1990 SL500/ AMG 6LTR 280 KW. Please and thank you ,also where does this voltage and or signals come from?
Marino, voltage at idle air valve: minimum 7 volts, maximum 13.5- usually operates in the 11-12.5 volt range EHA: voltage should oscillate between +1 milli-amp and -1 milliamp these signals originate from the KE control unit and the KE control unit takes power through the over voltage protection relay. Both of these are located in the right rear section of the engine, under the large plastic cover. The hot start issue could likely be the following: -fuel pressure accumulator -lean mixture from electro-hydraulic actuator -a bad fuel pump check valve - a fuel distributor that is dumping its resting pressure back to the return side
Hi, Pierre! I have a 1988 300E that has not been run for 10 years. I drained the tank and replaced the fuel filter. I cracked the fittings at both the supply and return sides of the fuel distributor and have good pressure at both places, but, when I crack the fittings at the fuel injectors, I see that I'm not getting pressure there. Could ethanol/gasoline sitting in the distributor for 10 years have rotted the seals so badly that there would be no supply getting to the injectors?
Good Morning! I am the owner of Speed Trappe Auto Repair and I am having an issue with a Mercedes 560SEC. The Fuel Distributor is leaking fuel into the intake through the plunger. I have replaced all the seals inside the distributor, including the seal inside the plunger. It appears that it only leaks when depressing on the plunger. But i do not have any fuel leaking past the plunger to the injector ports! Any help would be amazing!
www.startekinfo.com/StarTek/outside/12253/disc%202/program/Engine/107/M117_56/073-120.pdf according to this..4th page down, a slight leak is permissible through the plunger. meaning its a controlled leak in order to lubricate the plunger and to stop from earing it out against the air flow meter
Hello! i have a mercedes 1988 300 ce coupe, the problems i am having is condensation in distributor cap and my idle sometimes fluctuates and if i let the car sit for 2 weeks or so it does not start just cranking over and over then the fuel gets flooded and just wont start and sometimes when i drive and come to a stop it stalls. its really frustrating. Any advice on the problem? And my light warning light stays on but all lights are working changed every globe.
Hello ! I am a shop owner and have one of your specialties (not mine) in my shop...before I bombard you with a question...let me know if you are interested....1985 380 series if you will Sir
@@mercedesclassicswithpierre1753 i have a 1986 190E 2.3 8 valve... I am in Dade County Fl.. Do you have an email i can contact you to see if you are interested..thank you
Love. Your. Channel. 560SL owner here. Going through fuel delivery system work right now. This helps my layman mind understand what's being done. :)
My father and I would like to thank you very much for helping us correctly understand and diagnose our 1988 560SL I'm currently restoring. There is a lot of CIS information out there but 90% of them didn't help us understand the operation of this complex design. Thank you again for helping us and others! sincerly Mark and William.
You're most welcome sir!
Great video ! Thank You
So methodically clear and concise thank you
I have a 94 w124 problem it starts up fine in the morning but if I take a trip to the store and try to start it again … I have to step on the gas pedal to get it to start up again. I also smell a gas on the oils dip stick.
Welcome
What causes the engine to vibrate more when it is hot than cold?
I ask you to make a video and mention all the reasons that lead to engine vibration
I have a 89 560 SL. The fuel distributor needs to be rebuilt There is no one in our area capable. Can you rebuild it if it is shipped to you? Your videos are outstanding. I’m a car guy but not on these. And don’t want to risk it. Let me know. Thanks.
Hello, Jim C and thank YOU so much for your question(s), we want to answer you as quickly as possible.
By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre.
If you are already a $10 member please mention along with your question.
Great video but i want to find out this fuel distributor is the one with electronic value that can be used for 420SE
Hi Pierre happy New year I have currently purchased W126 420 Sel when driving it yesterday while sitting at a red light the engine stopped through which I starit again and carried on down the road then it cut out again while driving the third time it cut out it would not start again any suggestion
If the system pressure and control pressure are the same at (6.4bar) is this a faulty EHA?
If the control pressure is the same as the system pressure (6.4bar) is the EHA or the fuel distributor bad
what would happen if the diaphragm is compromised? my air flow meter at times is all resistance and i hear no hissing sound of fuel spraying into the manifold
Hello, my 87 560sl is having problems with the FD. Car runs super rich. I changed the FD and it ran amazing. Then after sitting in the afternoon. It stopped running again and started running horribly. Any ideas?
Hello quick question for you. Do you rebuild fuel distributors? I have a Mercedes 1992 Mercedes 300E with the 2.6 liter M103 if so where are you located?
Thanks
Walt,
Hi guys,
What other cars during that period use? Is this fuel distributor too complicating that renders it ineffective and unrepairable.
Dont think most mechanics know how it works now, and how to service this part. So w124 with M103 engines will be harder to maintain?
High I have a 1988 420 sel Mercedes Benz and I'm not to sure if the timing is off or what the problem is..one day it was running just fine and I went to put gas and after doing so I couldn't get it to start back up it turns over and sounds like it wants to start but won't .. I tried putting gas in the intake to see if it works start and nothing ...it has spark and the fuel pump is pimping gas to the front but won't start...plz help me
Pierre, also this only occurs on hot restart and when ambient temps are hot,no hesitation no trouble on starting cold and only 50, miles on this car. Injectors,caps,rotors,plungs ,EHA valve and Idle control valve new. Shop told me intake leak was caused and after repair, it still did same thing. Any suggestions,comment would be greatly appreciated. Last but certainly not least,excellent videos and keep up the great work. Regards from Calgary ,Canada
If you keep having issues please email me at mbownersforlife@bellsouth.net
Hi Pierre
I have a 1985 380sl. It was running and iddling hard but it drives. I messed up with the adjusting fuel/air mixture and now it wont start. I have a multimeter for duty cycle but how can I get it back to the original setting? Let me know if u have done it in tha pass
Thanks
Aloha Pierre I have a 1990 420SEL with fuel issues that line up exact with what this 3 part video speaks of. I attempted to replace the seals and diaphragm that come with the simple kits but made it worse. Can you recommend a reputable place where I can purchase the fuel distributor and actuator? Any help is appreciated. Mahalo
Got a w124 300e put down 7 years would not start need help getting it start
Hello I have a question on my 1986 Mercedes 560sl crank but doesn’t start
Is it possible that my 1984 280ce has the same system.?
I need a fuel distributor with electronic valve for 420SE with vin W126, 1986 model
can you help on w126 i need some information 500 SE 1980?
Can you run the fuel pump on a separate line whit a different relay to only be on the key position to run . The fuel pump runs constant wen the car is running anyway and is not control by ECU is a independent system if you get a good relay and connected properly it should run wright???
technically you could....i have taken the ecu out of the equation before..you just need to change the trigger wire from an ECU wire to an ignition hot.
Hi Pierre, can you point me in the right direction/site to buy a fuel regulator for a 1979 280E Mercedes? Thanks
Awesome I need more 😂
excellent video, i'm just curious how to isolate a crank no start to a distributor? ie how can i find out the distributor is or isn't causing the problem.
thanks
I take it you are referring to the electronic position sensor in the 1976-85 distributor. The only way to really check this is with an ohm meter. if the sensor is tootal open, then it's bad. These rarely fail. I find the ignituion control unit is usually the issue.
Hi. I've got an 83 MB 380SL. The fuel distributor is bad and I'm gonna get a new one. The part that you have looks very similar to mine. Does your connect to some below it like an airflow meter or something like that? I didn't know if this needs to be replaced in addition to the distributor. Thanks
Casey, please email me at mbownersforlife@bellsouth.net so i can better assist you.
Hi, I once bought a used 1974 450Slc for $1200 in 1999 kept it until 2002 I ended up donating it all because the car did not go forward nor in reverse, I towed it to a Mercedes dealer and they could not figure it out at the time, I assumed it would be the tranny, the car drove very nice I replaced the injectors with new Bosch $2000 replacements
at the time at a Mercedes dealer. The car when I bought it had a potent odor of fuel in the interior of car every time I drove it . I would like to
get a used 380 SL which year or years do you recommend .
your issue was likely a wiped front pump gear in your transmission....in, out, done!
Hi, do you have a video on W107, CIS hot starting issues and fuel pressure testing? My 1979 450sl is not holding fuel pressure when I shut it off and is very hard to start once it is hot.
please email at mbownersforlife@bellsouth.net...i should be able to help you. how old is your fuel pressure accumulator?
I have a question. How about surging idle (warmed up, cold, and/or at a stop light) and how to go about where to look?
The car is a 87 190e 2.3-16V
Thank you
Hello, I recently bought a 1989 190e 2.6 Mercedes Benz it idles but when I give it gas it turns off I replaced spark plugs and rotor and also cleaned the distributor cap now I think it's a fuel problem either distributor or pump or filter please help
it sounds to me like the electrohydraulic actuator is either bad or has a blocked screen. The EHA is an expensive part, and when it fails it can cause such a lean mixture that the engine will not rev beyond 1100 rpm. you may also have a blocked catalytic converter, or you may hav a fuel distributor issue...the fuel distributor can be tested using pressure gauges, see link below:
www.toolsource.com/fuel-injection-test-sets-c-1321_182_184/cis-kjetronic-fuel-injection-tester-p-91537.html?sourceid=googleps&gclid=CjwKCAiArK_fBRABEiwA0gOOc18T4YSI0OWnnOyxApG9PWZRpUlq-zXbQYNlpNUTyWJhaser5271-xoC5jwQAvD_BwE
Hi Pierre! What is a good brand CIS specific Fuel pressure test kit?
the one from baum tools has been awesome!
Hi Pierre, Great videos,Hope you can guide me I have a 1986 560sl starts easily and runs smooth with no hesitation upon acceleration,warms up in about 3-4 minutes idles a little rough and has huge hesitation upon rapid throttle advance,I've changed plugs wires cap etc I've changed EHC fuel filter ,cold start valve any Thoughts?Rick
Hi RIck, please email me at mbownersforlife@bellsouth.net. It sounds like your Electrohydraulic actuator needs to be adjusted, or you may have a bad oxygen sensor- or likely, both
Im having an interesting problem on an 88 560sel, i changed the fuel pressure regulator, but now i am getting fuel SPRAYING out from in between the fuel distributor where the rubber membrane is, as well as high pressurized fuel coming from the center port at 1:33 is this normal?
Hello Rod Roddy, I am one of the moderators for the Pierre Hedary Mercedes Benz channel and I saw your comment. It seems as if you'd benefit from personalized attention for the problem. We have provided a way for owners to get the help they need. If it's okay, please visit the website: www.classicbenzsos.com so you can schedule a call from Pierre Hedary. --LauraH
Hi Pierre, I just ordered myself a refurbished fuel distributor for my 300TE 24v. The supplier failed to inform that I also needed to order a new EHA until after they sent me my distributor. Would driving with a faulty EHA cause damage to the distributor? Or is it imperative that I also replace it before driving the car?
Hello, +Peter Diseris and thank YOU so much for your question(s), we want to answer you as quickly as possible.
By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre.
If you are already a $10 member please mention along with your question.
no Peter, and often they are not always bad. for more info please email me at mbownersforlife@bellsouth.net
Hi Pierre. 1976 450sl i refurbish fuel distributer in Germany with this ( german spob gmbh ) , now the car start good on idle but when pres accelerator the engine shutdown ( less fuel ) because the main lever don't go down to push plunger , if you push the main lever by your finger on the same time the engine continue working . any help pls .best regards,
your nut on the bottom of the central plunger (main lever) is probably too tight..that's what I usually see with these things.
Thank you a lot I will check and inform you the result. Best regards,
@@mercedesclassicswithpierre1753 Thank you Pierre, I adjuste the mean lever and the engine start, now I will organise all vacuum lines and replacement fuel canister, and remove all cold intake and clean. Best regards,
I have a 560sl, when I open the key but no start, the fuel pump used to run for few seconds only, but now fuel pump keeps running. The car runs ok. Is my fuel pump relay bad? Since the car starts and runs I would think that the fuel regulator is good. Thx
so when you try to start the car, what happens exactly?
you may want to consider emailing me...mbownersforlife@bellsouth.net
The car has a slow start, a little longer cranking time, but it starts and runs. The only thing if you leave the key on ON position then fuel pumps keeps running. Thx
GOOD day PIERRE..DO YOU HAVE ANY IDEA HOW TO ADJUST E.H.A or they called it electromagnetic fuel actuator of 190e 2.3l mercedes benz engine. it is installed at the back side of the fuel distributor.my engine can't accelerate meaning no power ...thanks
Jojo Bernard u
البحث وع هز الشباررغغ
Hello am Donald am having problems with my vehicle and i need solution to it the car doesn't start well engine is cold except I have to jug it before it starts when in motion it hesitate slightly I kindly ask for your help please
what kind of Mercedes do you have?
Hi! First, nice video. I have a question. I live in Ecuador and I own a 190E 2.0 manual trans. 4 cilinder. I've realized that my model does not have CO2 sensor neither lambda regulator. Pin 3 in X11 socket is empty and the ECU doen't even have the contact. How I calibrate the fuel-O2 without a measure? or to diagnose if EHA is bad.
Thanks
J M what are the symptoms you are dealing with>?
The Pierre Hedary Mercedes-Benz Classic Specialist Hi, the car some times runs really well. But, without any aparent cause it started to hesitate and the spark plugs got very dark (rich).
Hi Pierre, k jetronic system bosch distroy all beauti of car brands come with, headche system, 1989 560Sl with low mileage, on idle suddenly rpm drop down and jump again to normal, after driving and stop car in hour + and still engine hot after start car and drive to inter the main road the car not accept acclirator jurcking and take minutes to build power, I charge everything fule filter, accumulator, injectors, I restore all intake with new rubber, I see some people swap to carburetor, or upgrade to EFI, any solution to make w107 reliable. Temperature day 105 -115 F. Best regards,
Waiting your reply ASAP.
sorry if there are spilling mistakes in advance.
Hello, +A1 Auto Services and thank YOU so much for your question(s), we want to answer you as quickly as possible.
By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre.
If you are already a $10 member please mention along with your question.
a1, feel free to email me at mbownersforlife@bellsouth.net...is this a customer car?
I have a 98 560sll that will not stay running . It starts and dies. New rebiult fuel dist . I am getting fuel to the dist. And fuel going to the injections but have lots of air
Hello Mason,
I am one of the moderators for the Pierre Hedary Mercedes Benz channel and I saw your comment. It seems as if you'd benefit from personalized attention for the problem. We have provided a way for owners to get the help they need. If it's okay, please visit the website: www.ClassicBenzSOS.com so you can schedule a call from Pierre Hedary. --LauraH
I am going to discuss your issue in a video today!
Fuel are overflow brother what is reason
Hello Pierre, Can you tell me what the voltage should be at the idle control valve,and at the EHA valve. Having hot restart and stumbling issues on a 1990 SL500/ AMG 6LTR 280 KW. Please and thank you ,also where does this voltage and or signals come from?
Marino,
voltage at idle air valve: minimum 7 volts, maximum 13.5- usually operates in the 11-12.5 volt range
EHA: voltage should oscillate between +1 milli-amp and -1 milliamp
these signals originate from the KE control unit and the KE control unit takes power through the over voltage protection relay. Both of these are located in the right rear section of the engine, under the large plastic cover.
The hot start issue could likely be the following:
-fuel pressure accumulator
-lean mixture from electro-hydraulic actuator
-a bad fuel pump check valve
- a fuel distributor that is dumping its resting pressure back to the return side
Hi, Pierre! I have a 1988 300E that has not been run for 10 years. I drained the tank and replaced the fuel filter. I cracked the fittings at both the supply and return sides of the fuel distributor and have good pressure at both places, but, when I crack the fittings at the fuel injectors, I see that I'm not getting pressure there.
Could ethanol/gasoline sitting in the distributor for 10 years have rotted the seals so badly that there would be no supply getting to the injectors?
Oh yes, answer coming up soon...!
The Pierre Hedary Mercedes-Benz Classic Specialist
my w124 230E have no power to acceleration...and only get 110kph topspeed...why is that??? please help sir..
i think your electrohydraulic actuator is set too lean. I have a video about adjusting the EHA. please watch it.
@@mercedesclassicswithpierre1753 thank you sir....your are the best...salute sir..
good luck!
Good Morning! I am the owner of Speed Trappe Auto Repair and I am having an issue with a Mercedes 560SEC. The Fuel Distributor is leaking fuel into the intake through the plunger. I have replaced all the seals inside the distributor, including the seal inside the plunger. It appears that it only leaks when depressing on the plunger. But i do not have any fuel leaking past the plunger to the injector ports! Any help would be amazing!
please contact Larry Fletcher at 251-929-3771. I think he would be able to help you moreso than I would!
www.startekinfo.com/StarTek/outside/12253/disc%202/program/Engine/107/M117_56/073-120.pdf
according to this..4th page down, a slight leak is permissible through the plunger. meaning its a controlled leak in order to lubricate the plunger and to stop from earing it out against the air flow meter
Havuk Industries yes
Hi
Hello!
i have a mercedes 1988 300 ce coupe, the problems i am having is condensation in distributor cap and my idle sometimes fluctuates and if i let the car sit for 2 weeks or so it does not start just cranking over and over then the fuel gets flooded and just wont start and sometimes when i drive and come to a stop it stalls.
its really frustrating.
Any advice on the problem?
And my light warning light stays on but all lights are working changed every globe.
replace the rubber seal and backing plate underneath the distributor cap!
Thankyou Pierre i'll try that and i'll let you know how i went!
Much appreciated
Hello please tell me how can open that Fuel Distributor to rebuild
the screws that open it are on the bottom.
I have a 1986 560sel of you could help me out id really appreciate it sir.
what do you need help with Tyler? email me at mbownersforlife@bellsouth.net
The Pierre Hedary Mercedes-Benz Classic Specialist. I just sent one hopefully you get it sorry it took me so long to respond.
Fuel is not getting to the injector.
Hello ! I am a shop owner and have one of your specialties (not mine) in my shop...before I bombard you with a question...let me know if you are interested....1985 380 series if you will Sir
Hi Samuel, where are you located? What kind of issue are you having?
@@mercedesclassicswithpierre1753 i have a 1986 190E 2.3 8 valve... I am in Dade County Fl.. Do you have an email i can contact you to see if you are interested..thank you
i w call w you