Hard starting
Hard starting
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
Likes: 29
From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
If you have a LH fuel injection (electronic injection), not KE injection (big air flap under air filter) then it would most likely be a leaking fuel pressure regulator causing your hard hot start issue.
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
Likes: 29
From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
I'd recommend you get someone familiar with Bosch KE injection to carry on with diagnosis for you vehicle due to the relative complexities of the system for someone with limited experience.
I believe it would be fuel pressure related but unlike current fuel injection, educated guessing isn't recommended
I believe it would be fuel pressure related but unlike current fuel injection, educated guessing isn't recommended
Thread Starter
Newbie
Joined: Jul 2008
Posts: 4
Likes: 0
1991 500sl
Hard Starting
I will check these out.
I might also mention that when has been running and warm it will start right away right after shutdown. the hard starting is after it sits for 1/2 hour or say up to 2 hours. We have tried releasing the pressure in the gas tank before starting, but no different.
I might also mention that when has been running and warm it will start right away right after shutdown. the hard starting is after it sits for 1/2 hour or say up to 2 hours. We have tried releasing the pressure in the gas tank before starting, but no different.
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
Likes: 29
From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
It'll be a fuel pressure related problem, could be the accumulator next to the fuel pump but, as I said before, it really needs to be diagnosed by someone who knows KE-jetronic very well and who has the appropriate equipment.
