Wiper issues

[Paul Rice]

Did the annual grease removal of the wiper motor disc today as wipers not parking correctly. Not a lot of grease on the disc but some what looked like corrosion?
Cleaned disc but had to revert to a blade to remove corrosion. Wipers now park correctly but:

Intermittent works fine
When set on slow speed only works intermittently
When set on 2nd speed (Fast) only works on slow speed?
Have disassembled twice making sure everything was clean and the terminals in correctly yet still it has the issue?
Could it be the scratch marks on the copper disc or just coincidence the wipers are playing silly and its something else?
Any ideas Zedders?

 

[t-tony]

I would try some fine wet&dry paper on the scratches Paul. A smooth surface will give a better, consistent contact. Also some contact cleaner on the electrical plug can’t hurt Even if you haven’t had it apart.

Tony.

 

[Paul Rice]

I would try some fine wet&dry paper on the scratches Paul. A smooth surface will give a better, consistent contact. Also some contact cleaner on the electrical plug can’t hurt Even if you haven’t had it apart.

Tony.

Cheers Tony, will give it a try tomorrow

 

[t-tony]

Hope you get to the bottom of it mate. I think the electrical connector could be the key.

Tony.

 

[Stevo7682]

I know this may be out the ball park slightly have you checked to see if this is creating any fault codes and if so what.
Stephen.

 

[Paul Rice]

I know this may be out the ball park slightly have you checked to see if this is creating any fault codes and if so what.
Stephen.

Thanks Steve
Not plugged it in yet will try fault reader if the wet and dry doesn't work

 

[Stevo7682]

Just an idea as you know how more modern cars like to produce fault codes for just about everything.
Stephen

 

[Paul Rice]

Did the wet and dry, cleaned the electrical connector built back up still the same.
Checked code reader nothing evident.
Could it be the relay?

 

[t-tony]

If it’s parking OK now you must’ve done something mate. Can you borrow a switch from anyone with an E85?

Tony.

 

[Paul Rice]

Ordered a relay to try. At least i can still use it? It just seems strange if its not something i have done?

 

[Paul Rice]

New relay fitted, no change. Next step order a contact pen (think thats what its called) to coat contacts and copper disc

 

[t-tony]

New relay fitted, no change. Next step order a contact pen (think thats what its called) to coat contacts and copper disc

I’ll be interested in how that turns out mate. A new one on me.

Tony.

 

[Paul Rice]

I’ll be interested in how that turns out mate. A new one on me.

Tony.

I know they exist just cant remember what they call them. Ed on wheeler dealers used them on a corvette clock that wouldnt work

 

[Paul Rice]

Looking more and more like the motor?

 

[t-tony]

Is this the type of thing you’re looking for Paul?

HAMA GLASS FIBRE ELECTRICAL CONTACT CLEANING PEN BATTERY CONTACT CLEANER 5629 | eBay

Find many great new & used options and get the best deals for HAMA GLASS FIBRE ELECTRICAL CONTACT CLEANING PEN BATTERY CONTACT CLEANER 5629 at the best online prices at eBay! Free delivery for many products.

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Tony.

 

[Paul Rice]

This is what ive ordered to give it a try

Electrically Conducting PCB Paint Paste Conductive Electric Repair Circuit | eBay

Ideal for EMI / RF shielding, making electrically conductive circuits and general conductive paint.30ml bottles with a handy touch up brush inside for application, We will send multiple bottles for larger quantities so if you buy 90ml you would receive 3 x 30ml bottles.

www.ebay.co.uk

 

[NZ00Z3]

When you do your testing, are you just sitting in the car in the drive way? If so, I would expect to get the test results you are getting.

The wiper relay has a vehicle speed input. They will work normally when driving down the road, but default down a level (just like yours are now) when the speed drops very low or you stop.

 

[Paul Rice]

When you do your testing, are you just sitting in the car in the drive way? If so, I would expect to get the test results you are getting.

The wiper relay has a vehicle speed input. They will work normally when driving down the road, but default down a level (just like yours are now) when the speed drops very low or you stop.

Will try in the morning, thank you for the reply, dam clever those Germans, even if it was built in the States

If anyone wants a wiper relay let me know i have a spare.

 

[Paul Rice]

Many thanks to @NZ00Z3 bang on with the diagnosis.
All back together and working fine
Next step would have been a replacement motor, but now i know.
The power of a good forum (Probably the greatest forum in the world)

 

[t-tony]

Great news Paul. Murray is a very clever chap.

Tony.