Skip the auto shop - Our mechanics make house calls

Q: Convertible top sometimes works

asked by on

My convertible top only works intermittently.

A: The Audi A4 conertible top system monitors ...

The Audi A4 conertible top system monitors a total of 10 microswitches and 1 sensor to determine the soft top position and position of the trucklid and cover. What is likely happening is that the status of one of these microswitches is giving an incorrect or implausible position. Likely candidates are the the microswitches in the locking motors at the cowl. The wiring bends with the top and can break causing intermittent contact and can possibly cause a bad signal. The wiring needs to be traced and see if a break can be located. A scan tool that can read the sensor statuses as the top operates may need to be used to determine where the problem arises. You may need to enlist the help of a mechanic, like one from YourMechanic, who will have the access to the wiring diagram and the expertise to diagnose the top issue.

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

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: Trunk not closing

Hello. First, please keep in mind that the trunk cannot be locked until the convertible top is completely up or down. This prevents any components from binding and becoming stuck or broken. Have a mechanic, such as our YourMechanic experts,...

Q: Brake light comes on.

Hi, it sounds like the brake light switch needs replacing under the dash. I would have a technician such as one from YourMechanic replace it for you.

Q: Engine stalls when I come to a stop

Hello - There are several possible reasons for this form of stalling. A dirty or malfunctioning idle air control valve, an air leak in the intake (more complicated with all the turbocharger and intercooler hoses on your model), a dirty...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.