johny5_uk
Active Member
Its a tough one really, as I believe it was Steve_acp that raised the issue on this forum first with his very noisy engine sounding like a truck.
I didnt notice this on mine yet thinking back now, at around 3000 miles the engine started to sound noisy gradually and the power/reaction started to deteriorate albeit very slowly.
Now at 6000 miles mine did indeed sound like a truck when you started it up and even had comments from people who didnt really know much about cars.
This with the fact that the economy and performance was very very bad I had to raise a complaint with MB UK as I wasnt getting anywhere with my local dealer (not entirely their fault as all they can do is apply updates from MB UK, so I was in fact helping them in a way). The sport button didnt do much apart from stiffen the suspension and the throttle response hardly changed at all, nothing like when I first got the car.
To cut a long story, I emailed the local service manager some quotes from this forum regarding the temporary fix of reseting each injector along with a review from last December at how smooth and refined the E350 diesel engine sounded along with the fact that it didn't even sound like a diesel.
He apologised as apparently this temp fix was announced at a service briefing in Milton Keynes about 3 weeks ago and he wasn't present (although they should have sent a usb stick with information relating to the meeting).
They had mine in last Thursday, all they do is read off the codes from each injector and then re apply the same codes back into the injector/ecu?
He wasn't confident that this would do anything as he hadn't actually changed any values as such, but oh biy did it make a massive difference!
The engine when started, of course makes a small sound like a diesel but quickly disappears and turns into a growl as oppose to a noisy tapping/clunking sound. Throttle response is again superb and pressing the sport button changes it back into an animal
We came to the conclusion that there must be something in the ECU that is learning values the more miles you do and in turn telling the injectors not to perform.
The fix is essentially telling the car that you have had new injectors installed when you haven't.
Like I said, it was a tough one as you tend to get used to your car, and mine deteriorated over a longish period so you adjust to how your car sounds and feels. I have done a sound recording of before and after but it doesn't do the fix much justice and you have to hear/see in person really.
I would say if anyone has any doubts, go in to your dealer and mention this along with the injector reseting.
I didnt notice this on mine yet thinking back now, at around 3000 miles the engine started to sound noisy gradually and the power/reaction started to deteriorate albeit very slowly.
Now at 6000 miles mine did indeed sound like a truck when you started it up and even had comments from people who didnt really know much about cars.
This with the fact that the economy and performance was very very bad I had to raise a complaint with MB UK as I wasnt getting anywhere with my local dealer (not entirely their fault as all they can do is apply updates from MB UK, so I was in fact helping them in a way). The sport button didnt do much apart from stiffen the suspension and the throttle response hardly changed at all, nothing like when I first got the car.
To cut a long story, I emailed the local service manager some quotes from this forum regarding the temporary fix of reseting each injector along with a review from last December at how smooth and refined the E350 diesel engine sounded along with the fact that it didn't even sound like a diesel.
He apologised as apparently this temp fix was announced at a service briefing in Milton Keynes about 3 weeks ago and he wasn't present (although they should have sent a usb stick with information relating to the meeting).
They had mine in last Thursday, all they do is read off the codes from each injector and then re apply the same codes back into the injector/ecu?
He wasn't confident that this would do anything as he hadn't actually changed any values as such, but oh biy did it make a massive difference!
The engine when started, of course makes a small sound like a diesel but quickly disappears and turns into a growl as oppose to a noisy tapping/clunking sound. Throttle response is again superb and pressing the sport button changes it back into an animal
We came to the conclusion that there must be something in the ECU that is learning values the more miles you do and in turn telling the injectors not to perform.
The fix is essentially telling the car that you have had new injectors installed when you haven't.
Like I said, it was a tough one as you tend to get used to your car, and mine deteriorated over a longish period so you adjust to how your car sounds and feels. I have done a sound recording of before and after but it doesn't do the fix much justice and you have to hear/see in person really.
I would say if anyone has any doubts, go in to your dealer and mention this along with the injector reseting.
