2012 C250 - Jerk/jolt when approaching a stop

Dec 23, 2017 | 06:10 PM

Karl-Benz

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Joined: Dec 2017

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2012 C250

2012 C250 - Jerk/jolt when approaching a stop

Hi, I have a 2012 C250 1.8L 4 cyl+turbo auto tranny RWD, 85,000kms and still has some extended warranty. When I approach a red light or stop, as I am braking, the car jolts when it changes gear. It feels almost like I slammed on the brakes but I am actually applying consistent pressure on it. I noticed that its more apparent when the engine is still warming up. I've read that an ATF fluid or TCU flash might help this? Anyone know if anyone know which is likely the case? It only does this when I slow down (downshift), it's fine when up-shifting. Want to try and avoid warranty or MB dealer if possible to save it for something more serious.

Thanks!

Dec 23, 2017 | 11:04 PM

S70Houston

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Joined: Mar 2015

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From: Sacramento, CA

2018 GLC300 4Matic; 2008 ML550 4Matic; 2004 C320

Quote:

Originally Posted by Karl-Benz

Want to try and avoid warranty or MB dealer if possible to save it for something more serious.

WHY???? If the car still has some warranty, take it to the dealer and have it taken care of to avoid anything more serious in the future.

Dec 26, 2017 | 05:20 PM

edgalang

Super Member

Joined: Jan 2009

Posts: 929

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From: Silicon Valley, California

Factory ordered 2012 MB C350 w/Dynamic Handling Package

Quote:

Originally Posted by S70Houston

WHY???? If the car still has some warranty, take it to the dealer and have it taken care of to avoid anything more serious in the future.

My guess is that the OP has an extended warranty that gets refunded (or partially refunded) if it doesn't get used at the end of the term (I've seen these types offered before).

Jan 13, 2018 | 12:01 PM

Karl-Benz

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Joined: Dec 2017

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2012 C250

Quote:

Originally Posted by edgalang

My guess is that the OP has an extended warranty that gets refunded (or partially refunded) if it doesn't get used at the end of the term (I've seen these types offered before).

Along those lines. My warranty is for 2 years but if I don't put in a claim at the end of 2 years I can extend it further. I figured it would make more sense if I had the warranty when the car is older and the repairs are more serious.