2012 A4 windshield wiper issue

**Franny1978** · 11-27-2021 11:31 AM

My windshield wipers stopped working I checked the fuse it’s still good

Looks like it’s a common problem is it usually the motor that’s the issue ???

**Spawne32** · 11-27-2021 12:51 PM

I just picked up a used wiper linkage assembly with motor off ebay and put it in, takes about 30 minutes. You will need a wiper arm removal tool.

**DrGER** · 11-27-2021 01:15 PM

We had a B6 A4 where one of the wiper arm spindles became seized due to exposure to the elements. Just needed a new linkage assembly, old motor was fine. Easy enough to swap out. --g

**Franny1978** · 11-28-2021 05:53 AM

I was able to remove the wipers how do I know if it’s the motor or just the linkage assembly

**Franny1978** · 11-28-2021 09:36 AM

How do I know if it’s a linkage issue or a motor issue ??

**apeck240** · 11-28-2021 10:03 AM

Look at it

**Franny1978** · 11-28-2021 10:53 AM

Should it move freely?

**old guy** · 11-28-2021 12:53 PM

Originally Posted by Franny1978

Should it move freely?

Disconnect the motor from the linkage and see if you can manually move the linkage. Also operate the wiper motor when disconnected and see if the motor turns.

Also check the wiper motor fuse. (do this first). Brown fuse panel fuse #9 30 amp.

**A4B8 2.0tfsi** · 11-28-2021 01:42 PM

Originally Posted by Franny1978

I was able to remove the wipers how do I know if it’s the motor or just the linkage assembly

You obviously have to disconnect the linkage and test the motor.

**Theiceman** · 11-28-2021 08:27 PM

This is common on all Audis once the mileage gets up there..
Linkage seizes. I disassemble the linkage clean it up and regrease. But they are cheap to replace.

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**Nano909** · 11-28-2021 10:08 PM

This happened to me the other day. Putting the wipers into service mode fixed it.

**Franny1978** · 12-01-2021 03:15 PM

Replaced the fuse replaced the motor still nothing any other ideas ?

**Franny1978** · 12-01-2021 03:29 PM

Could I have a bad wiper switch ? How common is that

**Theiceman** · 12-01-2021 08:46 PM

Do the wipers work with the hood unlatched on this car ?

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**Spawne32** · 12-01-2021 08:46 PM

Originally Posted by Theiceman

Do the wipers work with the hood unlatched on this car ?

Sent from my SM-G973W using Audizine Forum mobile app

No.

**Theiceman** · 12-02-2021 07:35 AM

Originally Posted by Spawne32

No.

so that might be a clue right ?

**Smac770** · 12-02-2021 08:07 AM

One would think a simple scan, step 1 for electrically managed operations issues, would point out such things.
The windshield wiper motor J400 is on a LIN bus with the G397 RLS, managed by the J519. There are probably output tests for the J400 in the J519 (address 09).
And regarding the stalk, just monitor the measuring values in the J527 (steering controls, address 16) as you manipulate the stalk to see what the J527 is registering and passing to the J519.
If the car thought the hood latch was open, he should have the hood open warning diagram in the DIS.

**Smac770** · 12-02-2021 09:51 AM

Also, running with Nano's comment, using the menu system to put the wipers into service position would bypass the need to evaluate the operation of the stalk.

**Franny1978** · 12-02-2021 04:58 PM

Thanks for all your help on this guys I’m an Audi newbie

It ended up being the hood sensor even though the hood was closed it was showing open hood which wouldn’t allow the wipers to come on