Q: I started my car today and realized that the wipers, signals, lower driving lights and heater blower had all stopped working.

asked by on October 15, 2016

I have a 2000 audi a4 quattro 1.8t and I drove home from work today and the car worked fine, 20 minutes later i started my car and the wipers, signals, lower driving lights and heater blower had all stopped working. The headlights, hazards, radio interior lights and everything else still works fine. I replaced the ignition switch but this did not resolve the issues. Is there an ignition relay on my car that i could try to replace or what else should i try?

My car has 276000 miles.
My car has a manual transmission.

Hello and thanks for your question. there could be a blown fuse for the ignition switch or relay. Plus, look under the hood for any rats or field mice nests. Field mice like to chew through wires causing all kinds of issues. If there is no nest or chewed wires and the fuse or relay is operational, then check the main harness that hooks up to the steering column under the dash. The cluster could be loose or have a loose ground wire. If you need assistance in troubleshooting your electrical issue, then seek out a professional, preferably a YourMechanic professional to help with your vehicle.

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

Buying a lease vs. renting a car
I'm cheap. I buy them, but I buy them used and I don't pay much and I drive them for 10, 20 or 30 years. But, that's just me. The problem with leasing a car is this: if you lease...
cost of maniverter
Depending on the engine you have this price would be pretty close if both of them are being replaced. If this is for only one then it is high. You can get each manivertor online for less than $500 each...
Transmission jerks when changing gears when in drive.
Hello. This can be caused by a failing transmission, but there are other parts that need to be checked first. It can also be caused by worn out engine mounts (https://www.yourmechanic.com/services/engine-mount-replacement) or a bad cv axle (https://www.yourmechanic.com/services/axle-cv-shaft-assembly-replacement). I usually check...
Security light constantly on or flashing, battery light flashes, radio locked, power locks and dome lights don't work. Please help
Hi there, thanks for writing in. I'd be happy to provide my insight. I would not replace the BCM without a thorough diagnosis first. GM vehicles such as yours suffer from two small wires that break in the steering column....
Code P0016
The OBD-II error code P-0016 (https://www.yourmechanic.com/article/p0016-obd-ii-trouble-code-camshaft-position-a-camshaft-position-correlation-bank-1-by-jay-safford) is a generic code that indicates that the camshaft position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) for bank one does not correlate to the signal from the crankshaft position sensor. Some of the common trigger points that create...
I got a p 507 code
That's a good question. P507 is your idle speed control. There are a few issues you may want to look into. The throttle valve may be sticking, bad throttle motor, ECM, or a wiring problem. I would start by checking...
CAR ONLY STAYS ON WHILE HOLDING KEY AS SOON AS I LET GO OF KEY CAR SHUTS OFF
The ignition switch is going to be the most common failure for the ignition loosing contact in the run position of the switch. If you can hold the ignition in a position toward start position and can keep it running...
Could the HTR 50 A fuse be the problem for heat/blower not working?
Hello. Yes fuses can play a part in causing a blower motor to fail. The blower motor also has a resistor that can fail and cause the same symptoms. Both of these components can be tested and replaced if needed....
Car won't start. Tries to turn over and the dies immediately
Hi There, A few different things will usually cause the car to start and then die (https://www.yourmechanic.com/services/car-starts-and-then-dies-inspection). A bad ignition coil (https://www.yourmechanic.com/services/ignition-coil-replacement) can cause this if it is beginning to fail, resulting in intermittent starting problems. A dirty or faulty...

Related articles

What Typically Causes the Heating or AC to Stop Working?
While both the heating and AC are connected - to an extent - within your car, they’re actually...
How Long Does a Heater Blower Motor Last?
During During the colder parts of the month, you will start to rely more and more on your car’s heater. With all of the different components that are in place to ensure your heater works correctly, you may have a...
How Long Does a Windshield Wiper Linkage Last?
Most Most car owners are unaware about just how much work goes into making all of the systems and devices on their car work. There are a variety of things that have to be in constant motion under the hood...