Loss of power
Thread Starter
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Joined: Nov 2019
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w211
Loss of power
Hello, i have a w211 e350 2007, i had replaced the torque due to malfunction but now i have another problem is when im on the highway i suddenly lose power and if i accelerate the engine starts screaming but no power, then i put my gear on N then on D and everything is back to normal again, if im heading to the mountain and im going hard sometimes suddenly my rpm goes from 4k to 1k in 2 seconds and back to 4k again with power loss also. whats the problem ?
Junior Member
Joined: Nov 2019
Posts: 24
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From: Australia
E90 320i, D23 Navara, EL XR8, 207 E200
had an auto trans service? the first example you provided sounds like it could be low on trans fluid, but dont take my word until we see those codes
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Joined: Feb 2014
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Don't forget about replacing the transmission connector, it's a cheap part, but once it starts wicking up transmission fluid, strange things start to happen.
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MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
Junior Member
Joined: Nov 2019
Posts: 24
Likes: 5
From: Australia
E90 320i, D23 Navara, EL XR8, 207 E200
Yes thats another thing worth replacing, it connects the transmission wiring loom to the conductor plate, from memory the bolt is a 6mm?
Thread Starter
Newbie
Joined: Nov 2019
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w211
MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
Member
Joined: Apr 2019
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From: Vermont, USA
01 clk430, 05 e500 4matic
Clear ALL codes (your trans. codes are stored, but not active), triple check the fluid level (I think it'll be low), test drive, see what codes return. There appears to be maintenance required on a few areas of this car,
MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Yeah, it might actually be ok once the codes are cleared. You have other issues with the car. Search for intake manifold, sounds like it's also time for a new intake manifold. Camshaft sensors might also need to be replaced, but those error codes are stored not present so maybe it'll be ok once everything is cleared. Once cleared, scan again after driving for a bit to see if codes come back.
Junior Member
Joined: Nov 2019
Posts: 24
Likes: 5
From: Australia
E90 320i, D23 Navara, EL XR8, 207 E200
did the workshop who replaced the torque converter scan and clear the codes once they were satisfied with the work? if not as suggested above i'd be clearing and test driving than have a re-scan on the codes to see what returns.
may be worth adapting the transmission yourself while your at it
have a look at the tumble flap shafts to see if they've broken away from their linkage's
may be worth adapting the transmission yourself while your at it
have a look at the tumble flap shafts to see if they've broken away from their linkage's
