2004 Mercedes E320 4Matic Vibration wont go away
Thread Starter
Junior Member
Joined: Jun 2021
Posts: 15
Likes: 0
E320 4Matic
2004 Mercedes E320 4Matic Vibration wont go away
hey guys im new to the forum 
.
i recently purchased a 2004 Mercedes E320 4matic with 89000km on it there was a lot of vibrations going on in the car so the first thing i did was go to the forums since this is the first Mercedes i purchase haha.
i gathered a lot of info before making this post i changed my harmonic balancer it was due to be changed, vibrations got better i then changed my engine mounts because the old owner did not know what these were completely finished made a huge difference in the vibration after changing them out, but even with that i still notice a vibration in the car especially when the car
is in Drive or reverse and i don't push the gas and when i turn on the A/C its even worse.
I then decided to change the spark plugs because i noticed there is a wobble in the engine like there's a miss fire. It was better but still vibrations in the car, i also disconnected the coils 1 at a time and re pluged them while car was running to see if there was a coil that was faulty, they seem to be working properly.
i then decided to change my belt tensioner since there was a noise coming from it fixed that issue lol. my transmission mount seems to be still ok after 89000km
one thing i noticed was my harmonic balancer still wobbles a tiny bit don't know if that's fine.
please i need help i don't know what else to do but to change the injections on the car and even with that i don't think its gonna fix the vibrations issue. i hope one of you guys can help me out with this.
.i recently purchased a 2004 Mercedes E320 4matic with 89000km on it there was a lot of vibrations going on in the car so the first thing i did was go to the forums since this is the first Mercedes i purchase haha.
i gathered a lot of info before making this post i changed my harmonic balancer it was due to be changed, vibrations got better i then changed my engine mounts because the old owner did not know what these were completely finished made a huge difference in the vibration after changing them out, but even with that i still notice a vibration in the car especially when the car
is in Drive or reverse and i don't push the gas and when i turn on the A/C its even worse.
I then decided to change the spark plugs because i noticed there is a wobble in the engine like there's a miss fire. It was better but still vibrations in the car, i also disconnected the coils 1 at a time and re pluged them while car was running to see if there was a coil that was faulty, they seem to be working properly.
i then decided to change my belt tensioner since there was a noise coming from it fixed that issue lol. my transmission mount seems to be still ok after 89000km
one thing i noticed was my harmonic balancer still wobbles a tiny bit don't know if that's fine.
please i need help i don't know what else to do but to change the injections on the car and even with that i don't think its gonna fix the vibrations issue. i hope one of you guys can help me out with this.
Out Of Control!!
Joined: Sep 2018
Posts: 14,663
Likes: 4,567
From: unbegrenzt
2017 GLE350 4MATIC
V6 engine, correct?
When you say harmonic balancer, do you mean the main external crankshaft pulley?
Have you replaced the internal balancer assembly? This is needed for 90 degree V6 engines such as yours. They fail over time.
With a car nearing 20 years old, it’s time to replace anything rubber. If it’s rubber and it’s not 5 years old or newer, replace it.
When you say harmonic balancer, do you mean the main external crankshaft pulley?
Have you replaced the internal balancer assembly? This is needed for 90 degree V6 engines such as yours. They fail over time.
With a car nearing 20 years old, it’s time to replace anything rubber. If it’s rubber and it’s not 5 years old or newer, replace it.
MBWorld Fanatic!
Joined: May 2017
Posts: 2,290
Likes: 434
C320
V6 engine, correct?
When you say harmonic balancer, do you mean the main external crankshaft pulley?
Have you replaced the internal balancer assembly? This is needed for 90 degree V6 engines such as yours. They fail over time.
With a car nearing 20 years old, it’s time to replace anything rubber. If it’s rubber and it’s not 5 years old or newer, replace it.
When you say harmonic balancer, do you mean the main external crankshaft pulley?
Have you replaced the internal balancer assembly? This is needed for 90 degree V6 engines such as yours. They fail over time.
With a car nearing 20 years old, it’s time to replace anything rubber. If it’s rubber and it’s not 5 years old or newer, replace it.
Member
Joined: Feb 2017
Posts: 248
Likes: 36
From: L.A., Moscow, NYC, San Diego, Baja
1998 E320 Wagon, 2003 W211 E500, 2003 W211 E500, 1999 W210 E55 AMG
I just R&R'd the front flex disc Giubo on my '03 E500. Significantly reduced vibrations overall, smoothed out the ride, and eliminated a hard manuel shift through the gears. The disc looked fine when I checked it while still installed, but once removed I saw that every bolt hole had a ring of cracks around it. Just sayin'.
Trending Topics
Member
Joined: Jul 2018
Posts: 171
Likes: 34
From: USA Tennessee
2008 SL550 R230, 2004 E320 W211
I would agree with @tjts1 and look at the motor mounts and transmission mount.
I have a 2004 E320 and was experiencing similar vibration at idle and low RPMs, seemed worse when the engine was cold (see this thread). I chased this by replacing plugs and wires, injector cleaner, etc., thinking there was something wrong in the engine. I noticed that I could feel my vibration inside the car and at the steering wheel, when it was in drive/reverse and at low RPMs which I thought was more like a bad plug or wire/coil (no codes should have been a clue that there were no misfires or other issues, etc). When I looked at the engine itself when idling, it really wasn't shaking/vibrating and was actually pretty smooth. However, if motor and trans mounts are bad, you are going to feel vibrations it in the car and likely at the steering wheel.
Replacing the motor mounts and transmission mount with quality Lemforder (OEM) mounts, made it drive like a different car. I realize that the OP indicates motor mounts had been replaced, but I would look at the motor mounts and transmission mounts again, confirm they were a good quality brand (I would only use Lemforder, or maybe Corteco (I them Mercedes from Dealer are Lemforder) - I shopped around and bought from FCP Euro (no affiliation)) and I would confirm that transmission mount was changed as well (again with Lemforder or Corteco).
Just my opinion, could be something totally different...
Lee
I have a 2004 E320 and was experiencing similar vibration at idle and low RPMs, seemed worse when the engine was cold (see this thread). I chased this by replacing plugs and wires, injector cleaner, etc., thinking there was something wrong in the engine. I noticed that I could feel my vibration inside the car and at the steering wheel, when it was in drive/reverse and at low RPMs which I thought was more like a bad plug or wire/coil (no codes should have been a clue that there were no misfires or other issues, etc). When I looked at the engine itself when idling, it really wasn't shaking/vibrating and was actually pretty smooth. However, if motor and trans mounts are bad, you are going to feel vibrations it in the car and likely at the steering wheel.
Replacing the motor mounts and transmission mount with quality Lemforder (OEM) mounts, made it drive like a different car. I realize that the OP indicates motor mounts had been replaced, but I would look at the motor mounts and transmission mounts again, confirm they were a good quality brand (I would only use Lemforder, or maybe Corteco (I them Mercedes from Dealer are Lemforder) - I shopped around and bought from FCP Euro (no affiliation)) and I would confirm that transmission mount was changed as well (again with Lemforder or Corteco).
Just my opinion, could be something totally different...
Lee
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Out Of Control!!
Joined: Sep 2018
Posts: 14,663
Likes: 4,567
From: unbegrenzt
2017 GLE350 4MATIC
Yes, a 90 degree V6. Unless it's a slant 3. I don't think MB made a slant 3. Did they?
Balancer assembly is a candidate. Vibration while idling or revving in neutral.
Harmonic balancer is the main crankshaft pulley. Not the same as a balancer assembly.
MBWorld Fanatic!
Joined: May 2017
Posts: 2,290
Likes: 434
C320
In my opinion the OP needs to make sure he has Lemforder engine mounts. All other substitutes will vibrate.
Last edited by tjts1; Jun 8, 2021 at 06:45 PM.
Thread Starter
Junior Member
Joined: Jun 2021
Posts: 15
Likes: 0
E320 4Matic
what Leej was saying is exactly my issue and train of thought.
i was debating on the corteco and boge mounts and finally went with boge since people were point more for those then the corteco mounts.
if i would show you the mounts before lol you guys would freak out the original owner didn't know what moto mounts were. It was an old man.
im gonna try replacing my transmission mount to see if that might be the issue but my mecanic told me its still good but it hasent been changed since the car has been built in 2004.
when looking at the engine when on it looks like a small vibration and it looks like a misfire but i don't have any engine codes. im really at a a loss tbh.
also i live in canada does anyone know here i can get the transmission mount for my car? autopartsway.ca dont have it on their site, also how does it look like?
i was debating on the corteco and boge mounts and finally went with boge since people were point more for those then the corteco mounts.
if i would show you the mounts before lol you guys would freak out the original owner didn't know what moto mounts were. It was an old man.
im gonna try replacing my transmission mount to see if that might be the issue but my mecanic told me its still good but it hasent been changed since the car has been built in 2004.
when looking at the engine when on it looks like a small vibration and it looks like a misfire but i don't have any engine codes. im really at a a loss tbh.
also i live in canada does anyone know here i can get the transmission mount for my car? autopartsway.ca dont have it on their site, also how does it look like?
Last edited by joe5000; Jun 8, 2021 at 09:31 PM.
Out Of Control!!
Joined: Sep 2018
Posts: 14,663
Likes: 4,567
From: unbegrenzt
2017 GLE350 4MATIC
There are 2 very different engines and I think you're confusing the 2. The M112 harmonic balancer issue was in the early engines, pre 211. The M272 balance shaft failure only affected the 05-07 engines (early E350s). BOTH the M112 V6 and M272 V6 are 90 deg engines with a balance shaft yet have nothing else in common. The fact that the OP has an 04 E320 tells me his balance shaft is perfectly healthy.
In my opinion the OP needs to make sure he has Lemforder engine mounts. All other substitutes will vibrate.
In my opinion the OP needs to make sure he has Lemforder engine mounts. All other substitutes will vibrate.
Buy one ignition coil and swap it in sequentially in each cylinder to see if the vibration goes away.
Thread Starter
Junior Member
Joined: Jun 2021
Posts: 15
Likes: 0
E320 4Matic
i just changed the plugs recently the coils/spark plug wires/ injectors haven't been changed since 2004 but seems to be working just fine
Thread Starter
Junior Member
Joined: Jun 2021
Posts: 15
Likes: 0
E320 4Matic
I would agree with tjts1 and look at the motor mounts and transmission mount.
I have a 2004 E320 and was experiencing similar vibration at idle and low RPMs, seemed worse when the engine was cold (see this thread). I chased this by replacing plugs and wires, injector cleaner, etc., thinking there was something wrong in the engine. I noticed that I could feel my vibration inside the car and at the steering wheel, when it was in drive/reverse and at low RPMs which I thought was more like a bad plug or wire/coil (no codes should have been a clue that there were no misfires or other issues, etc). When I looked at the engine itself when idling, it really wasn't shaking/vibrating and was actually pretty smooth. However, if motor and trans mounts are bad, you are going to feel vibrations it in the car and likely at the steering wheel.
Replacing the motor mounts and transmission mount with quality Lemforder (OEM) mounts, made it drive like a different car. I realize that the OP indicates motor mounts had been replaced, but I would look at the motor mounts and transmission mounts again, confirm they were a good quality brand (I would only use Lemforder, or maybe Corteco (I them Mercedes from Dealer are Lemforder) - I shopped around and bought from FCP Euro (no affiliation)) and I would confirm that transmission mount was changed as well (again with Lemforder or Corteco).
Just my opinion, could be something totally different...
Lee
I have a 2004 E320 and was experiencing similar vibration at idle and low RPMs, seemed worse when the engine was cold (see this thread). I chased this by replacing plugs and wires, injector cleaner, etc., thinking there was something wrong in the engine. I noticed that I could feel my vibration inside the car and at the steering wheel, when it was in drive/reverse and at low RPMs which I thought was more like a bad plug or wire/coil (no codes should have been a clue that there were no misfires or other issues, etc). When I looked at the engine itself when idling, it really wasn't shaking/vibrating and was actually pretty smooth. However, if motor and trans mounts are bad, you are going to feel vibrations it in the car and likely at the steering wheel.
Replacing the motor mounts and transmission mount with quality Lemforder (OEM) mounts, made it drive like a different car. I realize that the OP indicates motor mounts had been replaced, but I would look at the motor mounts and transmission mounts again, confirm they were a good quality brand (I would only use Lemforder, or maybe Corteco (I them Mercedes from Dealer are Lemforder) - I shopped around and bought from FCP Euro (no affiliation)) and I would confirm that transmission mount was changed as well (again with Lemforder or Corteco).
Just my opinion, could be something totally different...
Lee
i was debating on the corteco and boge mounts and finally went with boge since people were point more for those then the corteco mounts.
if i would show you the mounts before lol you guys would freak out the original owner didn't know what moto mounts were. It was an old man.
im gonna try replacing my transmission mount to see if that might be the issue but my mecanic told me its still good but it hasent been changed since the car has been built in 2004.
when looking at the engine when on it looks like a small vibration and it looks like a misfire but i don't have any engine codes. im really at a a loss tbh.
also i live in canada does anyone know here i can get the transmission mount for my car? autopartsway.ca dont have it on their site, also how does it look like?
