The replacement interval seems extreme. The internal seals/diaphragms either aren't the same quality and/or still aren't tolerant of ethanol-containing fuel.
Yes that's really not normal , i bought my w126 with ke jetronic over 10 years ago and the fuel accumulator looks original and i never changed it but the car still starts perfect when warm, but the car also never really stood more than 1 month.
Wow that's crazy you're getting such a short life out of these components. I'll have to look for a date on the accumulator on my Audi, I'd presume it's at least 10 years old.
I’m having the same issue. The KE-Jetronic system on my M103 is really testing my patience. I’ve replaced almost everything and set up the correct duty cycle, but it still struggles with a warm start on the first attempt after the car has been stopped for 10-15 minutes. I’m also dealing with huge fuel consumption, even though the duty cycle is now correct. I suspect there might be an internal fuel leak somewhere, which could be causing the warm start issue. As I said, I really wish there were a KE-Jetronic specialist around because I’m starting to feel like giving up.
The alcohol in fuel is always to blame. It ate the return hose under the tank, it was a bit tough to fix. I advise to check your distributor cap. Mine had failed, and a Bosch one completely changed the car. Three weeks ago I had a cold start issue, and I suspected the same culprits you did, but, the problem was the fuel itself. Unfortunately, we only have this rubbish here in Brazil. Now that the engine spit the alcohol, it starts normally, either cold or warm.
I've gone the same route with replacing most things. I did notice that the EHA valve is a pretty significant component when it comes to hot and cold starts and general drivability and smoothness. So perhaps if you havent replaced that, go for it.
New day, new fuel related issue. :( Just test it without the damper and see if it’s working out - high load testing. Should be fine for the „normal“ driving.
@@GP-124 i had great success making these ones myself on my red car using ethanol rated fuel hose. On this car they are original but i am mindful of this fact and am keeping an eye on them.
Still the cheaper alternative than the freaking expensive Bosch parts. Or get completely rid of the damper… which is not the right way. But for testing… why not? Like I just stated in his last video: I think the fuel in down under is just crap. Here in Germany we got „Better“ fuel, but I can mix in synthetic two stroke oil for the sake of taming down these bio fuels. Also I just put in 102 octane fuel, and have no converter on the m102. And my Fuel system is - apart from cracking fuel hoses (40 years later) absolut ok.
@@tyberzann9713 there is definitely something seriously wrong with our fuel. I never ever had so many fuel system problems and have been playing with these cars for more than 20 years.
I am concerned just like you. I think of converting my M103 to EFI, since fuel in Brazil is 100x worse than yours. There are reports of traces of methanol in our fuel, besides of the garbage ethanol. I wonder if the W210 EFI and intake manifold could fit the M103, since I would like to use a MB original EFI.
it’s not worth to do such a big modification better just change the car. if you only like this era you can get a 1993~1995 model efi w124 or a W140. Not sure and haven’t tested but I read somewhere you can put a little of 2 stroke oil in the fuel tank to mix it with the fuel it helps to lubricate and preserve the ke jet components that are ethanol sensitive. someone mentioned in the comments here too
@@gcgj1540 As a mechanical engineer, it would be no big deal to me, but sourcing parts. I live in Brazil, and things here are extremely difficult, such as the money worthing 7 times less (1 USD = 7 BRL). By the way, not that big. Mostly intake manifold, fuel rail, and the modules. There are kit such as KJet killers, MegaSquirt, works pretty well, but I'd rather take Mercedes parts instead.
@@AndreyPaiva-ed2ih aqui nas terras tupiniquins as coisas estão difíceis para quem gosta de um passatempo saudável e inteligente... desisti do meu 260E por causa disso...
@@vmlelectronics Não desista. Temos uns aos outros. E temos as estrelas. O Dave sempre diz que o maior antidepressivo é a Mercedes, e quando dirijo a minha, eu boto um sorriso de volta no rosto. É o melhor remédio.
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
The replacement interval seems extreme. The internal seals/diaphragms either aren't the same quality and/or still aren't tolerant of ethanol-containing fuel.
@@HTMLEXP i am convinced the fuel quality i am getting is much much worse than it used to be. Never had so many problems before.
Yes that's really not normal , i bought my w126 with ke jetronic over 10 years ago and the fuel accumulator looks original and i never changed it but the car still starts perfect when warm, but the car also never really stood more than 1 month.
Here in Brazil there's 35% of ethanol mixed to the gasoline, what makes almost impossible to keep KE running fine for so long...
I for one would apreciate seeing you making a video of efi converting one, full stand alone. you are the best guides for old iron m104s on youtube.
Wow that's crazy you're getting such a short life out of these components. I'll have to look for a date on the accumulator on my Audi, I'd presume it's at least 10 years old.
I’m having the same issue. The KE-Jetronic system on my M103 is really testing my patience. I’ve replaced almost everything and set up the correct duty cycle, but it still struggles with a warm start on the first attempt after the car has been stopped for 10-15 minutes. I’m also dealing with huge fuel consumption, even though the duty cycle is now correct. I suspect there might be an internal fuel leak somewhere, which could be causing the warm start issue. As I said, I really wish there were a KE-Jetronic specialist around because I’m starting to feel like giving up.
The alcohol in fuel is always to blame. It ate the return hose under the tank, it was a bit tough to fix. I advise to check your distributor cap. Mine had failed, and a Bosch one completely changed the car. Three weeks ago I had a cold start issue, and I suspected the same culprits you did, but, the problem was the fuel itself. Unfortunately, we only have this rubbish here in Brazil. Now that the engine spit the alcohol, it starts normally, either cold or warm.
I've gone the same route with replacing most things. I did notice that the EHA valve is a pretty significant component when it comes to hot and cold starts and general drivability and smoothness. So perhaps if you havent replaced that, go for it.
@@shaazy EHA replaced, no luck :(
@@AndreyPaiva-ed2ih distributor cap changed as well :(
New day, new fuel related issue. :(
Just test it without the damper and see if it’s working out - high load testing. Should be fine for the „normal“ driving.
Have you checked the fuel lines at AC heat exchanger? Bellow intake manifold, these are prone to leak as well.
@@GP-124 i had great success making these ones myself on my red car using ethanol rated fuel hose. On this car they are original but i am mindful of this fact and am keeping an eye on them.
What would you be looking to get for the car if you were going to sell it?
I wonder if IE. radium fuel damper is acceptable option for these oem bosch dampers?
Still the cheaper alternative than the freaking expensive Bosch parts.
Or get completely rid of the damper… which is not the right way. But for testing… why not?
Like I just stated in his last video: I think the fuel in down under is just crap. Here in Germany we got „Better“ fuel, but I can mix in synthetic two stroke oil for the sake of taming down these bio fuels. Also I just put in 102 octane fuel, and have no converter on the m102. And my Fuel system is - apart from cracking fuel hoses (40 years later) absolut ok.
@@tyberzann9713 there is definitely something seriously wrong with our fuel. I never ever had so many fuel system problems and have been playing with these cars for more than 20 years.
I am concerned just like you. I think of converting my M103 to EFI, since fuel in Brazil is 100x worse than yours. There are reports of traces of methanol in our fuel, besides of the garbage ethanol. I wonder if the W210 EFI and intake manifold could fit the M103, since I would like to use a MB original EFI.
it’s not worth to do such a big modification better just change the car. if you only like this era you can get a 1993~1995 model efi w124 or a W140. Not sure and haven’t tested but I read somewhere you can put a little of 2 stroke oil in the fuel tank to mix it with the fuel it helps to lubricate and preserve the ke jet components that are ethanol sensitive. someone mentioned in the comments here too
@@gcgj1540 As a mechanical engineer, it would be no big deal to me, but sourcing parts. I live in Brazil, and things here are extremely difficult, such as the money worthing 7 times less (1 USD = 7 BRL). By the way, not that big. Mostly intake manifold, fuel rail, and the modules.
There are kit such as KJet killers, MegaSquirt, works pretty well, but I'd rather take Mercedes parts instead.
@@AndreyPaiva-ed2ih aqui nas terras tupiniquins as coisas estão difíceis para quem gosta de um passatempo saudável e inteligente... desisti do meu 260E por causa disso...
@@vmlelectronics Não desista. Temos uns aos outros. E temos as estrelas. O Dave sempre diz que o maior antidepressivo é a Mercedes, e quando dirijo a minha, eu boto um sorriso de volta no rosto. É o melhor remédio.
Top Motoren m104 1A.
Efi time I reckon by the time you keep spending on bits and pieces