Mercedes Sprinter Not starting / intermittent start problem / no start solution
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- Опубликовано: 30 мар 2021
- 2006 - 2012 Mercedes Sprinter Starting issues. Before ordering any parts check the areas/parts shown in this video, as you could have a different issue. It does not cost you anything to check the parts mentioned. Please make sure your key and immobilizer is fine and not the issue, this can be done by trying the spare key or scanning the vehicle for fault codes. If that is established then the problem and solution shown in this video is more than likely the cause especially if your vehicle does not get used on a daily basis.
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Yellow Relay - A0009828123
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Disclaimer: This video was created for informational and educational purposes only. I cannot guarantee against the improper use or unauthorised modifications of this information. No liability for property damage or injury incurred as a result of any of the information contained in this video is assumed. Use this information at your own risk. I recommend safe practices when working on any vehicles and with tools seen or implied in this video. You are using the information and automotive parts shown in this video solely at your own risk. It is not intended to be a substitute for the professional advice of a service centre or mechanic. 
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THANK YOU SO MUCH!!!! GREAT VIDEO! NO SCREAMING GUITAR MUSIC, LOVE THAT! JUST VERY HELPFUL INFORMATION! NEW SUB. ALWAYS THUMBS UP!!!
Appreciate the comment!
I had this issue and it took me forever to figure out as it was so intermittent. Wish I had found this video back before I solved it.
Great video for what looks to be a common issue, with next to no material out there identifying the cause.
Appreciate it. Thanks
So I’ve got a 58 plate. Did exactly this. All 4 relays, 5,6,7,8 had corrosion on the relay faces. Relay 7 was the one that stopped the ignition. Started earth cable was crusty as well so I stuck another one on however this didn’t let the engine start. It was relay 7.
Thanks for the video. Good luck everyone
Thanks for the feedback. Most of the time its relay 5,7,8 that cause issues with 7 being the cause, best to replace them all as Mercedes updated the relays with a superseded version as well. There are several more worth checking as well = Relay 1, 2 & 3
Great video! I changed the relays on our 2011 (on drivers side) and found the old gray ones to have corrosion. I have had this issue off and on for 5 years and always assumed it was the battery.
A lot of ppl are not aware of this. Great to know you've fixed yours.
Thank you! Been broke down on and off for months at side of road. Why didn’t I search this video sooner 😂🙏
Thanks! Appreciate the comment!
Thank you. Relays fixed my 2007 sprinter. Stole the relays from one of my dead ml270's. Spares in the glove box now.
Excellent!
Thanx so much. I think you solved my 519 cdi starting problem. The relays make sense. Keep well.
Glad to know you found your problem. Thanks for the feedback!
Liked and subscribed.
Great video.
Cliffs notes version : random faulty relays cause vehicle not to start. Replace all the relays. Check earth strap between engine - chassy - battery : clean contact points between earth straps.
Shows location of relays adjacent fuse box.
This is a common problem across many vehicles so one to keep in mind when intermittent start problems emerge
Thanks!
Changed the relays and it fixed my problem. Thanks mate
Excellent!
Awesome video. One of the best How To's Ive seen
Thank you!
Absolutely brilliant ,well explained thank-you!
Thanks!
Thanks for making a video with very useful information👍👍
Thanks for the comment!
Top video, great instructions, havent tried yet will do soon,
Thank you!
Thanks a lot for this great video, I was getting the same problem. 👍
Thanks for the feedback!
Hi handsome. Everything you stated makes sense. Great explanation. More videos please.
Been having same issue for a while now gonna give this a shot fingers crossed and great video 👍
Great!
Did the changing of the relays solve your problem?
Thanks very much that gives me something to work with. The dealer had a shot at diagnosing the problem before I bought the van, according to the previous owner. We have had the van for a few years and this comes up every once in a while and I think it’s more frequent in the winter.
Thanks for that. This is an interment fault, can have at the worst possible time (on a long trip away from home) so I would suggest following the video and replacing the items shown.
your the man, tks a lot.... greetings from Berlin Germany
Appreciate the comment. Thank you.
Very informative. Thank you for sharing.
Glad it was helpful!
great detail excellent job explaining
Thanks Scott!
Thanks, this fixed my sprinter
Glad I could help.
Love this videos top mechanic work
Thanks Mike. Appreciate the comment!
My Mercedes SLK is having the same problem. I will see if your advice helps. Thanks
Excellent presentation. Thank you
Thank you!
Great presentation, very helpful
A faulty park neutral switch was problem in our 2017 Mercedes Sprinter (2018 Pleasure Way). It was never diagnosed correctly by Mercedes dealers until I found the dealership in Rocklin California. They fixed it under warranty and we have never had this problem again.
Great! What was the issue? Did the vehicle not start? Or did it crank over and stall?
Awesome, thank you!
Thanks
Was the intermittent start happening when hot? My vito does it when hot.
Excellent video
Thanks!
Awesome… exactly the fault I get. What’s the chances of finding this exact video !! Good work man
Thanks for the comment!
Good Job!
Thanks!
thank you
thanks for this best regards
Thanks for the comment!
Thnks very much for your help
Thanks!
Hi, great and very informative. Can I just check where relay 7 is located? I see on the diagram you have marked the ones to change as numbers 1, 2, 3 & 4? Thanks
Thanks! Relay R7 is no. 3 in my diagram.
Great video, thanks very much. One question before I take the van apart to replace the relays. Can you please confirm all the Grey relays are of the same part number and all the yellow relays of the same part number? Put simply, I just order 3x Grey relays and 3x yellow? thanks
Yeap, generally they are as mentioned in this video. There isn't really anything major which you remove in order to access the relays, if you want to confirm best to call your local MB dealership and give them your VIN.
Thankyou very much
Thanks!
Thanks for the great presentation. Where do you get the relays?
Thank you, the relays can be bought from Mercedes as seen in the video with the part numbers or from VW if you have the Crafter, you can also get it online from Amazon, I believe.
Once you pull off the ground cable and relays does the van need to be updated using MB software or anything?
Nope. Just ensure the ignition is off while completing the work.
Thank you
Thanks!
But I have a Vito Benz is not starting and the injectors is relging
Would it make sense to spray electrical contact cleaner into the female side of the relay to clean any corrosion there also so that the new relays aren't being plugged into a corroded socket. This can happen when people maybe are inhabiting the van in moist conditions without proper ventilation and heating and cold conditions condensation occurs on the electrical parts and that's bad.
Yes your correct, you could clean the relays but as this is a starting issue I would personally always opt to use the new replacement relays. Last thing ppl want is to be stuck in the middle of nowhere.
had this problem so thanks for the video now sorted I did open up old ones and cleaned the contacts they did work but still replaced them and kept the old ones as spare
Glad it helped! Thanks for the comment.
this information is very useful for us, thank you, please click like to spread the video
Thanks for the comment!
Thanks for the video it was very help full where are you located?? Do you do service for sprinters let me know
Thanks. We are in NZ!
What is the Amperage of the grey relays? and the yellow? 70amp?
Yeap correct around 70amps
Hi , thanks for great video. I have problem with mercedes sprinter 2014 brake force distribution . I replaced the break light switch and still doesn't start. Can you please help me 🙏
Have you scanned the vehicle? Any fault codes?
Are the Relais interchangeable? Or ist? Different Relais for different function?
Yes Only the ones with the same part number are interchangeable.
Interesting, I have intermittent ignition and alarm problems with a 2005 Vito but I'm guessing the advice about the earthing and relays could be just relevant for the Vito.
Yeap its relevant to most models. Not uncommon though for older immobilisers to fail as well.
I don't suppose you have a video on how to fix/replace an immobiliser? A topic for a future vlog perhaps🙂
@@bogsplash8612 Unfortunately not at this stage, but will keep it in mind for future videos.
Does this relay location is also on the 2013 sprinter?
Yea it does
These are the 3 most common relays that cause starting issues: (5:28 mins)
#1 as seen in the video diagram - Relay 5 = Fuel pump relay
#2 as seen in the video diagram - Relay 7 = Load relief relay, terminal 15 R (Ignition)
#3 as seen in the video diagram - Relay 8 = Starter relay, additional battery
Normally best practice to replace these 3 and the additional one mentioned (all 4 at once), there are several more which can also cause an issue, normally these need to be inspected and if corrosion is found should be replaced. Seen in my diagram labelled "Inspect"
R1 - K6 Starter relay, right-hand drive
R2 - K41 Load relief relay, terminal 15 (Ignition)
R3 - K41/5 Starter relay, terminal 15
Do you have the Tyco Part # for the Yellow Relay? Great video, I have the exact same issue, just afraid when I buy new relays from MB I will get the old Hella, Made In China ones. Thank you.
Tyco V23134J52X361
@@AutoBuddynz Thank you for the reply but I think the # you provided was for the grey relay
I am having this issue on my 2006 along with a communication error and crank pos sensor error. Could a corroded relay cause all of these?
You can check the relays its super easy but not likely to be the fault. Check the Cas sensor and wiring to it
@@AutoBuddynz CKP? Already did that. Got an error code 0336, out of range and communication errors. U0122, etc. No idea what is wrong at this point
Where do you buy the relays from MB dealership?
I always buy genuine from Mercedes.
I started my sprinter in the morning parked it in the garden and it shutted off by itself and after that i couldn’t start it, NO CRANK, no start. What it can be?
@@pa3k709 Have you checked your start battery voltage? That would be the first check I would suggest
When you turned the key and no start did you notice if you were hearing the relay or not ?
Its hard to hear the relay. The relay can be opened up and checked as seen in this video
سلام عليكم اخي انا من العراق عندي ورشة عمل وتصليح ممكن المساعدة وشكرا
Good Video ! AAA+++
Appreciate the comment. Thanks
I had this before but now no lights go on on the dashboard if I turn the key.
Have you tried a different key? Do any lights come on with the key in switch POS 1 (ACC)?
Ive just taken my relats out they look new. I will have to try a new earth i have same issue but its getting worse now wont start at all
Try the earth otherwise get the starter motor and key checked too
I'm having the same problem. When condition occurs, I can not interface my scanner with the OBD port - CDI won't talk to my SnapOn Zeus. I'm replacing these relays from another identical van that's never had a problem starting tomorrow morning. Both 2008 Sprinters. Curious if anyone else has OBD interface problem when starter is not cranking.
Normally you should be able to interface with the computer through the OBD port. Did you manage to solve your problem?
@@AutoBuddynz Would love to hear if it was solved
Would love to hear if it was solved and how. My 2008 won't crank. It's been slow to crank for weeks now and finally croaked
Let us know how it goes.
What about starter fuse , it keeps blowing
Sounds like a short circuit somewhere, most obvious place to start looking would be around the starter, the signal wire or the main feed could be damaged.
I have a 2008 Sprinter and have intermittent issues with the wipers, passenger window, tail light, cabin fan, fuel gauge. Any suggestions?
Sounds like a possible wiring issue, has this recently occurred? Was there any work carried out then you noticed the problem? Any issues with the engine or transmission operation?
@@AutoBuddynz No work was carried out prior. The engine had EGR tube replaced recently. Transmission hesitates when cold ... you can see the RPM fluctuating while driving.
@@robblack6115 Relay no.3, no.4 power the wipers and fuel pump. When the issue occurs or if you can replicate it, start checking there as I mentioned in the video these relays can play up, also bad ground connections can also can intermittent issues
Hi handsome great videi.
Hey, Man. I will try to replace those relays. My MB 313 CDI have some serious starting issues - it cranks with effort and every third or fourth time, doesn't start. We repaired the injectors, repaired starter motor, changed crank shaft and cam shaft sensors, changed that mass wire and new battery and nothing changed. And it doesn't even matter if the engine is cold or warm - it just wont start. It's real pain in the a**.
Does it run ok when started? Have you done a leak down or compression test on it? Fuel pump tested?
@@AutoBuddynz As far as I am concerned, it runs ok, when started, but yesterday my worker said that there is a significant sound while running (maybe chain???) I didn't test the fuel pump, but we did a computer diagnostic and it showed 250 - 254 bar preassure on rail, while cranking, and, as I find an information on the internet, it is more or less ok.
I would suggest checking the timing, if this is ok then move onto a compression test or leak down test. What were the fault codes?
Have the same issue on my Sprinter, you find a solution?
I have hard start in my sprinter 315 2007 what is the probleme please Same one help me 🙏
Check or replace your glow plugs and test the circuit for any voltage drop. I would start there. Also worth scanning the vehicle to check for any fault codes.
@@AutoBuddynz thanks for help 🙏
Also check the clutch pedal switch to see if that’s faulty
Yes, good point, however a scan of the vehicle should normally point this out.
Hi handsome. More videos ❤