4matic opinion
04-25-2006, 07:53 PM
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4matic opinion
quick ques. my 2000 e320 4matic goes thump towards the rear when pushing the gas pedal when moving at 5 to 20 mph. the harder you hit the pedal the harder the thump. dealer told me it was mormal with all 4matics. all opinions and experiences welcome.
kennyv
kennyv
04-26-2006, 12:38 PM
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E320-4Matic
This is not normal...I also own a 2000 E320-4matic,the tranny shifts smoothly.Perhaps you need a tranny service(new filter & mb fluid)..Good luck,take it to another shop.
04-26-2006, 01:45 PM
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It's possible you simply have a worn flex disc.
However, this problem also is, at least in part, due to a design defect in the rear differential that makes it somewhat "loose" from the factory. The sound you hear is the engine taking up the slack in the drivetrain after coasting. The rear differential (and the noise) are common to both 4Matic and RWD cars. although having all 4 wheels hooked together may exacerbate the problem in the 4Matic.
Search the archives. Here are some pertinent threads from another forum that may also be of help:
I'd have the flex discs checked out. If they're okay, and the noise is coming from the differential, I wouldn't worry about it unless you have a warranty that will pay to replace it. It's unlikely to fail or get worse.
However, this problem also is, at least in part, due to a design defect in the rear differential that makes it somewhat "loose" from the factory. The sound you hear is the engine taking up the slack in the drivetrain after coasting. The rear differential (and the noise) are common to both 4Matic and RWD cars. although having all 4 wheels hooked together may exacerbate the problem in the 4Matic.
Search the archives. Here are some pertinent threads from another forum that may also be of help:
I'd have the flex discs checked out. If they're okay, and the noise is coming from the differential, I wouldn't worry about it unless you have a warranty that will pay to replace it. It's unlikely to fail or get worse.
Last edited by lexrex; 04-26-2006 at 01:48 PM.
04-26-2006, 01:47 PM
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2001 E320
Originally Posted by kennyv
quick ques. my 2000 e320 4matic goes thump towards the rear when pushing the gas pedal when moving at 5 to 20 mph. the harder you hit the pedal the harder the thump. dealer told me it was mormal with all 4matics. all opinions and experiences welcome.
kennyv
kennyv
I'm going to guess that it is something more than a transmission fluid change but maybe it's really dirty or low and is causing a hard shift... I would have a professional M-B tech take it for a drive...
'Thump' noises are typically associated with worn parts or something that has loosened up...
Last edited by Richard / E320; 04-26-2006 at 01:53 PM.
04-30-2006, 11:55 PM
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thanks to everyones reply, for their opinion and for experiences. just got the car and the dealer did say that its somewhat normal w 4matics but could also be the transfer case. the will try to simulate the prob and get back with me.
kennyv
kennyv
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05-03-2006, 02:58 AM
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Originally Posted by lexrex
It's possible you simply have a worn flex disc.
However, this problem also is, at least in part, due to a design defect in the rear differential that makes it somewhat "loose" from the factory. The sound you hear is the engine taking up the slack in the drivetrain after coasting. The rear differential (and the noise) are common to both 4Matic and RWD cars. although having all 4 wheels hooked together may exacerbate the problem in the 4Matic.
Search the archives. Here are some pertinent threads from another forum that may also be of help:
I'd have the flex discs checked out. If they're okay, and the noise is coming from the differential, I wouldn't worry about it unless you have a warranty that will pay to replace it. It's unlikely to fail or get worse.
However, this problem also is, at least in part, due to a design defect in the rear differential that makes it somewhat "loose" from the factory. The sound you hear is the engine taking up the slack in the drivetrain after coasting. The rear differential (and the noise) are common to both 4Matic and RWD cars. although having all 4 wheels hooked together may exacerbate the problem in the 4Matic.
Search the archives. Here are some pertinent threads from another forum that may also be of help:
I'd have the flex discs checked out. If they're okay, and the noise is coming from the differential, I wouldn't worry about it unless you have a warranty that will pay to replace it. It's unlikely to fail or get worse.
They need to make a forum award, and this gentleman would likely be my first nomination.
