Installed engine/tranny mounts... But car is not feeling as fast?
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From: Queens, NY
04 w211 E55
Installed engine/tranny mounts... But car is not feeling as fast?
I just got the mounts changed and I took the car for some spirited driving and I feel as if the car is not as fast for some reason The shifts sometimes feel stock and then sometimes they feel quick but after some more runs car seems to be shifting more consistent on the tcu side.
The car felt very aggressive before this, feeling as if it wanted to do wheelies and now it feels as if the car has no tune. The car feels SO smooth. At a light you would think the car is off. I did some logging and my iat went to 130F and drop right back down to 98-104F. Any ideas?
The car felt very aggressive before this, feeling as if it wanted to do wheelies and now it feels as if the car has no tune. The car feels SO smooth. At a light you would think the car is off. I did some logging and my iat went to 130F and drop right back down to 98-104F. Any ideas?
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05 e55 amg
I don't think the mounts should have an affect your power. I had my engine and tranny mounts changed a few weeks ago afterwards the car is smoother better ride. Before I got my mounts changed my car use to jump I can actually feel and see the engine moving and jumping which is sign my mounts were bad. And as usual the driver side was broken. Common issue on our cars the engine and tranny mounts too much torque. Don't be surprised if you have to change them twice a year.
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From: Queens, NY
04 w211 E55
I don't think the mounts should have an affect your power. I had my engine and tranny mounts changed a few weeks ago afterwards the car is smoother better ride. Before I got my mounts changed my car use to jump I can actually feel and see the engine moving and jumping which is sign my mounts were bad. And as usual the driver side was broken. Common issue on our cars the engine and tranny mounts too much torque. Don't be surprised if you have to change them twice a year.
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From: Folsom, CA
2005 E55 AMG
maybe the engine/trans flopping around gave you move of a 'bam' the car is moving feel? 
but the mounts can actually rob power (when they're bad) torque that could be going to the wheels is actually moving the engine/trans inside the car - you should get the opposite of what you're feeling... maybe the smoothness is distracting you from the speed?
but the mounts can actually rob power (when they're bad) torque that could be going to the wheels is actually moving the engine/trans inside the car - you should get the opposite of what you're feeling... maybe the smoothness is distracting you from the speed?
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From: Queens, NY
04 w211 E55
maybe the engine/trans flopping around gave you move of a 'bam' the car is moving feel?
but the mounts can actually rob power (when they're bad) torque that could be going to the wheels is actually moving the engine/trans inside the car - you should get the opposite of what you're feeling... maybe the smoothness is distracting you from the speed?
but the mounts can actually rob power (when they're bad) torque that could be going to the wheels is actually moving the engine/trans inside the car - you should get the opposite of what you're feeling... maybe the smoothness is distracting you from the speed?
The car is just no where near as aggressive now but it makes no sense to me at all as to why it's acting up like this. I'm going to have the mechanic who changed my mounts reset the adaption on my tcu as instructors by EC. I'll try do a Ecu reset also and see how that goes. I just replaced a whole ***** load things and finally got her at 100% and now this. Very frustrating.
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From: S.I., NY
C63/X5/ML/YUGO
I would ask EC to send you a new file and try it out bc there is no way that your car acting the way it does now just bc you change mounts it's a 100% tune related issue hope you fix her soon need you back on the road 
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Thread Starter
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From: Queens, NY
04 w211 E55
I'm just going to re-flash the car for pulley tune and I'm going to reset the adaptions on my tcu, my mechanic has the MB computer and he can reset it for me. I just wish to know how this power loss happened.
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From: Queens, NY
04 w211 E55
I left my battery unplugged overnight and did the tcu reset along with the Ecu reset. Car still doesn't feel as strong. My dad who loves fast cars but doesn't really get the modding parts to it asked me why the car feels a lot less aggressive so I know it's not just me lol
Last edited by E55AMGGG04; Oct 20, 2013 at 04:01 PM.
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2004 E55, 2003 IS300
Take into consideration that disconnecting the battery for a long period of time will cause the ECU to wipe out its adaptations. There is a possibility that this may be the issue because who ever changed your mounts most likely disconnected the battery. Also, your supercharger may not be engaging... Just something to consider
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From: Queens, NY
04 w211 E55
After I dissconnezted the battery I let the car shift about 30-40 times before I started flooring the car. Today I got in 2 full blast shifts and it shifted fine but power distribution feels stock. I'm going to re-flash the car tom remotely and take it out for a drive and see what happens. Car was Dyno tuned and I'll have to go to box tune/pulley flash. I asked if EC can look over the file.
Coming out of there the mileage on my odometer was flashing this " ----- ". I was told it might be in some type of diagnostic mode. They hooked the car up back to the computer and took 15 mins to get the mileage to read again. Doesn't explain why the car feel's like its stock on C mode :/
Coming out of there the mileage on my odometer was flashing this " ----- ". I was told it might be in some type of diagnostic mode. They hooked the car up back to the computer and took 15 mins to get the mileage to read again. Doesn't explain why the car feel's like its stock on C mode :/
Last edited by E55AMGGG04; Oct 20, 2013 at 06:42 PM.
Thread Starter
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From: Queens, NY
04 w211 E55
I did a search and I'm afraid the guys who did my mounts might have updated my Ecu software, there's a thread where a few guys say car feels like there is no tune after the car was serviced. I'll find out 100% for sure.
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2004 E55, 2003 IS300
It's funny that you said that... I was thinking that exact same think earlier and was going to grow that out there... That would deffinetly answer all ofte questions.
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From: Northern VA
W211
The guys that installed your motor mounts, are they the dealership?? If so, why would they do so if motor mounts have no software updates required?? I know the dealer may be doing it so you have the latests software updates but at least let you know.
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From: Ridgecrest, CA
M113 E50 6-speed, 2005 E55 AMG
I heard on a Mercedes Tech website that rotor adaptation in DAS is required if you change the motor mounts. Sounds weird but it's like when some people can get away with replacing the crank sensor and going, and when some have to re-adapt via control unit adaptations. Just shooting out possibilities for ya.
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From: Queens, NY
04 w211 E55
This place is not a MB dealer and all they work on is German cars. He has all the legit MB, BMW computers. He wanted to diagnose the car see if I have any other issues. They told me to go get my sbc pump replaced cause there's a recall on it. I think he was just trying to help me out by running it through the computer.
Edit: my cousin has an e60 m5 and he mentioned this to me also. They also have felt this happen to them so I'm almost positive this is why I feel car has no tune
Edit: my cousin has an e60 m5 and he mentioned this to me also. They also have felt this happen to them so I'm almost positive this is why I feel car has no tune
Last edited by E55AMGGG04; Oct 21, 2013 at 10:43 AM.
