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2000 Mercedes Benz E55 AMG
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Discussion Starter · #1 ·
Hi everyone, sorry for yet another MAF post.

The E55 is still new to me, only owned 3 months and 1500 kms driven. It has approx. 75000 kms (47000 miles). While taking it to my indie last Saturday morning (to schedule tranny service, I figure it's 9 years old) got a CEL on the way under moderate acceleration. Car lost power instantly, like going into limp mode. Codes were p0300 and p0303, cylinder 3 misfire, and the cylinder did shut down. So we figure either wire/coil pack/plug for starters, have a quick look at cylinder 3, but didn't pull anything out yet. No other stored codes, I was specifically looking for MAF codes as I am suspect of the MAF and even cleaned it two weeks ago. I have cleaned MAF's on my wife's previous W203 C240.

Reset codes and went for a ride w/ mechanic - no codes. Car pulled much harder and gas mileage improves to 12.0L/100 (19mpg) from 15L/100 (15mpg) in city traffic. Since Saturday, no CEL has reappeared, although I have been waiting for one. Shifts however are strange. Under normal acceleration, they are fluid and smooth. Under heavier acceleration the car almost feels to hold back then power comes all at once and gear seems to hang at 6500 rpm until shifting. Shifts are somewhat jerky at that point, but the car still accelerates decently, but not great. Gas mileage has worsened.

Any idea's? Just change out the MAF and do the tranny service? I am planning to pull the plug/wire tomorrow, but thought to pose the question first.

BTW - while at the indie, caught a ride in a CLS 65 AMG there having summer wheels put back on. Not a fan of the CLS, but did that engine ever impress me. It sounds wonderful!

Thanks in advance,

Rob
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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I would let others comment.

I would do a hard reset (battery disconnect) to reset both the tranny and the ECU.


Tranny service is one critical issue to long term usablilty, so other misc issues should not hold you back from the tranny service.


Good luck !
 

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2000 W210 E55 AMG, 2002 SLK32 AMG, 2007 W164 ML320 CDI
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I still don;t know y disconnecting the battery will only make the car "do good" for a couple of weeks then it becomes all slow and jerky again......didnt have any CEL codes and my MAF is only less then a year old and also my O2 sensors are less then a year old......almost lost to a stock accord yesterday at a stoplight the car just doesnt have the power at the time.......pull the battery out after for a while and is a monster again now probably for 2 weeks.........
 

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E55 210 sequential gearbox 2000
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34 Posts
Hi Rob, I have the same car with 77000km's on the clock and the same problem. I have had similar problems 2 years in a row and the Benz service twice replaced the O2 sensors ( so they tell me and charged for them). Surely they do not need replacing every year or 8000 kms. I do not get a fault message through the computer. Loath to front the Benz dealers again. The disconnecting the battery is something n ew to me I must try. What is the MAF and where is it and how do you clean it.
The other problem I have are sticky steering wheel buttons, Benz did not realise that is a problem!!! Any cure for that, do you have the same problem?
Regards from OZ
Rainer
 

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2000 Mercedes Benz E55 AMG
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Discussion Starter · #5 ·
Thanks for the advice.

Due to limited time this weekend, I did not have a chance to pull the plug/coil/wire in cylinder 3. I did get to the battery reset Saturday afternoon, and was I ever glad I did it.
After reconnection, the car was fantastic. I only drove it for approx. 10 minutes, but it had great response, no hesitation and smooth shifting all along the rpm ranges. Torque was outrageous, and I didn’t drive it hard in fear of the trans fluid. Drove much better than I have yet to experience and there were no hanging or jerky shifts, although I will proceed with the tranny fluid change, which is scheduled for next week. Drove it again on Sunday, no changes, still strong. I will monitor to see if the car reverts back to “grandpa,” as msiumng states, but I still need to inspect cylinder 3 coils/wires/plug. I find it odd however that since the CEL last week, the problem has yet to reappear.

Rainer, the MAF is located at the rear of the engine under the air box. There is a sticky in this forum under DIY on MAF cleaning that is very accurate and well detailed along with many, many MAF posts here to help if you search them. I’ve probably read all of them before posting my issue. You will need to remove the airbox to access the MAF. I suggest searching the forum for instructions if unsure how to remove either the airbox or MAF. The MAF assembly itslef is black and cylindrical in shape with the sensor in the centre of the unit. If cleaning, please ensure that you use MAF Cleaner. Some suggest electrical contact cleaner I believe. I regret that I do not have the sticky steering wheel button issue, but I can appreciate your frustration with it. It seems us E55 owners are pretty meticulous, if not anal with our cars. I found a couple creases in my rear seat as a result of myy daughters child seat and want to replace the bench! You may wish to try the battery reset also. I was completely baffled with how different the car was after completing that.
 

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2000 W210 E55 AMG, 2002 SLK32 AMG, 2007 W164 ML320 CDI
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yeah rob for me my car will go back to granpa mode in about 2 weeks after battery reset I really want to know is there a solution to it......but I mean if is alright I can always disconnect the battery every 2 weeks is not that hard to do but I just worry it will ruin the car by doing that all the time
 

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E55 210 sequential gearbox 2000
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Hi Rob, I don't know why your answer to my reply does not appear but thank you anyway. I guess in Ontario you do not get the hot conditions regarding the steering wheel buttons as we do her in Oz. I am having a mech look at my car on thursday and will let you know the outcome. I tried to reset the ECU today but it made very little difference. Th car has actually been a disappointment, I have done 30K kms in it and when it runs good it is a dream. but so many little niggles , next I buy a Lexus.
Regards

Rainer
 

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2000 W210 E55 AMG, 2002 SLK32 AMG, 2007 W164 ML320 CDI
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did you try disconnect the battery for at least 30 mins and reconnect again rainer? or did you use the soft reset ECU way the turn key and press gas pedal method?
 

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E55 210 sequential gearbox 2000
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Hi Rob, I has my mechanic look at my car yesterday, he could not find any malfunctioncode at all, he di think the cars idle was not the best, he then reset the computer and the car is running well since then I did try to reset with the gaspaddle and ignition key but that did nothing before. I suppose jis reset is the same as disconnecting the battery.
Any way its OK at the moment we will see. He also suggested to change the oil at about 100K kms.
Regards

Rainer
 

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E55 210 sequential gearbox 2000
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did you try disconnect the battery for at least 30 mins and reconnect again rainer? or did you use the soft reset ECU way the turn key and press gas pedal method?
Thanks for that advice, I only tried the pedal method, my mechanic reset the computer and the car goes much better. have you got sticky steering wheel buttons?
Thanks
Rainer
 

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1965 Chrysler Valiant AP5
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The transmission holding back= air flow sensor. Jerking etc. Cleaning it is a temporary solution.

The PO303 PO300 codes = leads.

Very common.
 

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2000 Mercedes Benz E55 AMG
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Discussion Starter · #12 ·
Star Garage,

Thanks for the response. I have been monitoring closely since the code, none have re-appeared, but I will address it. As for the MAF, I’m just going to change it.
 

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E55 210 sequential gearbox 2000
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Thanks for that I only did the gas pedal job which did nothing but then my mechanic reset the ecu and whatever else and it made a big difference.
regards

rainer
 

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E55 210 sequential gearbox 2000
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The transmission holding back= air flow sensor. Jerking etc. Cleaning it is a temporary solution.

The PO303 PO300 codes = leads.

Very common.
Hi Star Garage, I am from the Gold coast have you got a fix for sticky and gooey steering wheel buttons for a 210 E55 2000 ? Also I ahd my air mass sensor replaced at 58 K and 68 K the car has done 78K and it seems on the way out again? do they only last that long? I will be in Sydney next week and would like to come and visit you.Can I just come in? or make an appointment for appraisal?
Rainer
 
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