ML320 Engine Shuts down at 4000 rpm - Page 2 - PeachParts Mercedes-Benz Forum

PEO'R · #16 01-03-2005, 08:04 PM

Well... Gilly has called it right. I swapped MAF from the SLK to the ML and it runs like new again. Thank you Gilly and thank you all. This has saved me much time, money and hassle.

Pat

Gilly · #17 01-03-2005, 08:09 PM

It's a pretty common problem, almost a no-brainer. I'm always afraid someone is going to buy one and it's not going to fix it, so I was glad to hear you have a donor car to borrow the sensor from. Now you just need to find a better source for a new one, have you checked Fastlane???

Gilly

00ML430 Bulldog · #18 01-04-2005, 11:34 AM

Quote:

Originally Posted by PEO'R

I use a dry filter on the ML and SLK. The Air intake system looks tight and is clean, dry and dust free. I will ask the dealer to check it out. They want $330 for a new MAF which is about the best price I can find anywhere.

Just a thought, could I swap the MAF betwen the ML320 and the SLK320 just to check it out?

Pat

They have it here for a little cheaper $287.30... http://www************/partlocator/index.cfm?action=getLocator&siteid=213884&chapter=EPI346&appSectionid=3&groupid=10046&subgroupid=61073&make=67&model=Ml320&year=2002&catalogid=1

aklim · #19 01-05-2005, 01:51 AM

Anyone seen the post on MAFs?

Mass Air Flow Sensor alternative

jayhawk · #20 03-03-2006, 05:13 PM

2001 ML320. CEL was on with P0175 and P0112 codes but otherwise the car would run OK. Installed new AMM and threw the old one away. After the car was warmed up - driving was a problem, it would lose power on acceleration and hesitate, spit and spudder up hills like it was going to stall. After two days of this, I dug the old AMM out of the trash and reinstalled it. Now the engine runs without losing power but I'm getting the P0175 code again.

Did I get a bad AMM? or is there some other problem I'm overlooking. I've checked for vacuum leaks, cleaned out the EGR tube, which was very dirty. I have not changed the fuel filter but it probably needs to be done. Could this be the problem?

00ML430 Bulldog · #21 03-03-2006, 07:53 PM

Quote:

Originally Posted by jayhawk

2001 ML320. CEL was on with P0175 and P0112 codes but otherwise the car would run OK. Installed new AMM and threw the old one away. After the car was warmed up - driving was a problem, it would lose power on acceleration and hesitate, spit and spudder up hills like it was going to stall. After two days of this, I dug the old AMM out of the trash and reinstalled it. Now the engine runs without losing power but I'm getting the P0175 code again.

Did I get a bad AMM? or is there some other problem I'm overlooking. I've checked for vacuum leaks, cleaned out the EGR tube, which was very dirty. I have not changed the fuel filter but it probably needs to be done. Could this be the problem?

Could be a defective Mass Air Flow Sensor, also change the fuel filter while you are at it....