Rear Wiper Comes On When Using Key Fob To Unlock Car

[ninjaman]

:wacko: hi everyone ,just bought  a c4 hatchback and noticed a few glitches.its a 55 plate , and when I go to unlock it with the key fob the rear wiper comes on for about 5 wipes then goes off!!!!!! .cant seem to get my head around it ,any ideas anyone. cheers.

[paul.h]

Welcome to the forum.

If the rear wiper does not park properly when it is used normally, then there could be a fault with the wiper motor. We had this on our C3 and it stopped when the hatch door was replaced with a second hand one including the wiper motor. The wiper moving to the normal park position when the key fob was used to unlock the doors also happened on the C3 if the wiper had not parked properly.

 

What model/engine do you have, although not relevant for the wiper.

[ninjaman]

hi paul, its a 1.4 lx petrol. just been told by the local garage its the rear wiper control unit, which is gonna cost £300.00!!!! I don't think its that myself,does anyone think it could be the motor itself ,although it works perfectly well in all its functions? regards chris.also can anyone send me a picture of what a rear wiper control unit looks like, so I can find were it is!! Edited June 27, 2013 by ninjaman

[paul.h]

For £300 I would live with it, I did on our C3 for years. It was only sorted since there was a large dent in the door and the cheapest way to fix that was a second hand door for £50 which included all the things on it.

 

Years ago, the standard wiper motor on BL cars had an internal stop switch which used to wear down and stop working so the wipers eventually never stopped - I suspect the Citroen wiper motors have something similar although the BL one could be replaced. The C3 one often would not stop after a single wipe but kept on going, eventually stopping in any position. Then on unlocking the doors, would move again and stop correctly. The second hand motor fixed it.

 

How do you find the car and its performance, only asking as a possible replacement for the C3. I have been considering a diesel but they are £1-2000 dearer to buy, need twice as many services as a petrol and the 1.6 hdi is known for turbo failures so any fuel savings are more than wiped out by higher costs. I have read elsewhere that the 1.4 petrol at high mileages is prone to head gasket failure but that is something that can be diy fixed at lowish cost so not really a worry - although if it is due to corrosion, it may be worthwhile replacing the long life anti freeze Citroen use.

 

If you need a workshop manual for the C4, Haynes do not do one but the Citroen service box ones can be found on such as ebay for as little as £3.99 on 3 dvds.

[paul.h]

The rear wiper motor is held by 3 large rivets that need an 8mm drill to remove. Its part no. is 6405 NL on earlier cars and 6405 S2 on later ones. The C3 and C5 have different part nos so if looking for a second hand one it will need to come from a C4. You can check the correct part no. against your VIN on the service.citroen website, join as an other professional, member of the Citroen Owners Club.

 

The wiper control unit will be the one below the steering wheel that includes the wiper and light switches, usually called the comms 2000 unit. On our C3, I did try to clean the wiper switch with a spray cleaner but this did not help.

[ninjaman]

ok, thanx paul for your input. I think im gonna live with it for a while, and when I get some spare cash I will buy a second hand wiper motor and see if that works. As for the c4 ,petrol consumption is great , im getting around 44m.p.g round town,had a piccasso before this and that was crap!!!! lucky to get 28 m.p.g. regards chris

[paul.h]

Another possible cause could be damage to the wiring loom where it goes between the body and hatch door. The wires break in the rubber protective tube and apparently is a common failure. Can also affect other electrics on the door.

[THOMASROBLOT]

hello

For this problem the first thing you have to do is to check your wire in your boot car.

I am sure that there are cut on the left side (up)

look at that and leave a feedback if your need more explanation

I will try to find a picture it will be easy to understand.

by

Edited August 18, 2013 by THOMASROBLOT