Q: Car lunges forward when gear is engaged

asked by on September 07, 2016

When the gear engaged, without warning my car lunged forward. It was reported to me by the dealer that the mechatronics was defective and needed to be replaced. They repaired it, but it did not help. My vehicle still has the same problem with lunging forward when I engage the gear. I returned the car to them two more times and the technician said the transmission needed to be replaced. I am hesitant to have this repair performed since their first diagnosis did not correct the problem. In your viewpoint, what will permanently fix my car’s problem?

Car jerks forward at high speeds Inspection $94.99 - $114.99 Get a Quote

Hi there, thank you for writing about your 2010 Audi S5. There is a software update for the transmission/clutch controller that is supposed to correct this problem. Check with your Audi dealer for this fix. If you want to have this problem checked by a certified mechanic, a technician from YourMechanic can come to your home or office to inspect your car jerking problem.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Water pump housing leaks
Hello. This comes up often on this engine. If the housing for the water pump is leaking, then the water pump needs to be replaced (https://www.yourmechanic.com/services/water-pump-replacement). Most of the time the water pump housing does not leak on this engine,...
SUV jerks while driving, braking, and accelerating
You may have an issue with your catalytic converter (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-catalytic-converter) not allowing the flow of exhaust that is necessary to maintain a good running engine. If you had a tune up done recently then your ignition system should be working...
Replaced Master and Slave clutch cylinders, feels like I have a clutch but can't put into gear while running.
You may still have some air in the clutch hydraulics, or you are having an issue with the clutch not fully releasing. This can be from the air in the system causing the clutch slave cylinder to not move far...
4wd not working, just making a clicking nose
Hi, thanks for writing in. It sounds like you have the NV233 transfercase. The transfercase control module receives input from various sensors and switches, including the tranfercase range switch. It then uses this information to engage the transfercase actuator/encoder motor...
Car shakes for acceleration
Shaking or vibrating may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) may cause the engine idle to drop below the...
Stabilitrak warning light
Hi There, It sounds like you may potentially have two separate issues going on here. The stabilitrak system is your car's traction control system as you may know. This will generally not cause the car to shut down completely, however...
Red lined engine by accident and now the engine idle is higher than normal. Smell something burning like rubber.
Hi there. The engine revving up higher than normal could be caused by the idle air control valve (IAC). The valve could have gotten stuck when the engine was throttled rapidly when first started. Check the IAC and see if...
where is the crankshaft positioncensor. located on a 2001 Alero
If you have the 4 cylinder engine, the sensor is mounted in a hole in the engine block that is accessible once you remove the right wheel/tire assembly. If you have the 6 cylinder engine, to get to the sensor...
Problems after transmission put in
Check to see if there is warranty coverage on the work that was performed. It is not clear if the issue is the engine jerking or the transmission jerking, or both. The noise, of course, is a clear indication of...

Related articles

How Long Does a Clutch Last?
It’s a fact of life that a car clutch will almost certainly wear out before your car does. That’s because, even...
A Buyer’s Guide to the 2012 Audi A7
In In true Audi fashion, the 2012 A7 delivers the exceptional performance, enjoyable handling and luxurious interior you’ve come to expect. However, they also combined those things with an innovative four-door coupe hatchback design that is anything but ordinary. Key...
How Long Does a Kickdown Cable Last?
In In order for a car to run smoothly, the engine and the transmission will have to work together. With all of the different components in the engine and transmission of a car, keeping up with them all can be...