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

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・Save up to 30%

Get a quote

What others are asking

Q: Convertible mechanism not working.

The Nissan 350Z is one of my favorites. Experiencing any difficulty with the convertible top opening and closing will definitely frustrate the driving experience of this great machine. There seem to be several reasons as to why the top will...

Q: Remote key not opening driver's door

There are a couple possibilities. The lock actuator motor in the left front door could have gone bad. There could be a broken wire, the most common spot would be in the door jamb where the wires bend. A qualified...

Q: Jerking reaction when accelerating

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.