Skip the auto shop - Our mechanics make house calls

Q: Changed VANOS Solinoid-Mechanic Wants to Replace Entire Engine

asked by on

My car was not properly accelerating and was stopping in the middle of the road. I got two diagnostics done and they both said it was the solenoids. The mechanics changed both and are now saying there is actual damage in the engine and it would be best to replace the whole engine. What could the issue be?
My car has an automatic transmission.

A: It’s entirely possible that there is an eng...

It’s entirely possible that there is an engine problem. The VANOS system is BMW’s take on variable valve timing, and if your car is a regular Mini Cooper, not the Cooper S model, then it has double VANOS and uses Valvetronic to control the throttle input. If the solenoids have been replaced, it’s possible that one of the VANOS gears has failed, which could be causing the problem. Unless there is physical damage to the motor, I see no reason to replace the entire engine, though replacing the VANOS gears is a very big job. I would suggest getting a third opinion on your acceleration issue from a qualified independent technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: Engine cut while driving, now dont crank.Cant turn it with hand.

Of course, first confirm that the plugs are correct for the engine. The wrong plugs, and/or missing crush washers, can cause interference with the piston. If the plugs are correct, the cause of the mechanical interference can sometimes only be...

Q: My check engine light came on...car isn't overheating no change in engine temp gauges..autozone used one of their testing gages sa

There are several possible reasons for a check engine light to come on. Typically, when the check engine light appears, the first step is to pull the diagnostic codes out of the computer with a scan tool, like you did....

Q: I'm told I need to replace the engine coils to the tune of $300 each at the dealership.

The engine coil is the same as the ignition coil; what it is called is simply personal preference. There is no risk in having a non-dealership technician perform this repair. However, the technician you choose should be certified, knowledgeable, courteous,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...