windscreen wiper very slow

[mickl]

My windscreen wiper has suddenly become very slow during the middle of it's sweep. Does this mean the motor is on it's way out?

 

[KillerHERTZ]

Maybe, or it could be your battery is getting flat.
Are your lights dim? does it take a little longer to start the car then normally?

Mine was getting slower & slower just before my battery went

 

[frog1520]

When this happened to me on the W140, I pulled the cap off the bottom and put some grease on the extending shaft thing. Ran it a few times and its been OK since.

When this happened to my C180, I took it to the dealer who charged me 800 pounds for doing something or other.

Theres threads on here talking about it - its a common problem....

 

[mickl]

Maybe, or it could be your battery is getting flat.
Are your lights dim? does it take a little longer to start the car then normally?

Mine was getting slower & slower just before my battery went

Battery went flat a couple weeks ago due to lack of use but has been tested and charged up again.

 

[grasmere]

lift the cap and grease the 2 shafts within - that'll sort it - theres loads of threads about this

 

[Alps]

I just had the same problem on mine, started getting stuck when driving home on sunday, took one cap off and sprayed some spray grease (NOT WD40), ran it for a bit and seems ok, lets see how it goes!

 

[Shude]

worst-case either the mechanism is starting to seize or the motor is on the way out, mine struggled in the middle and then a couple of days later it died halfway up the screen! The motor is one of the cheapest bits to die.

 

[mickl]

worst-case either the mechanism is starting to seize or the motor is on the way out, mine struggled in the middle and then a couple of days later it died halfway up the screen! The motor is one of the cheapest bits to die.

I thought the motor was quite an expensive part or is that the mechanism?

 

[Shude]

I thought the motor was quite an expensive part or is that the mechanism?

The motor is about £150, the mechanism is more like double that! I advise everyone lubricate their mechanism as often as possible to avoid abrasion and ultimately damage!

 

[mickl]

squirting a shedload of grease under the upper flap on the arm seems to have done the trick. Can't get the lower larger cover off though, is it just a clip on cover?

 

[Alps]

Done the same as MickL, and had the same prob with the lower cover!

 

[Shude]

The cover is evil, it is held on with a couple of nasty little clips that you can't see from anywhere except the underside of the cover.

Please see: http://mbclub.co.uk/forums/showthread.php?t=789

 

[DieselE]

I advise everyone lubricate their mechanism as often as possible to avoid abrasion and ultimately damage!

Always excellent advice in any context.

 

[Shude]

Always excellent advice in any context.

It was intentionally worded that way

 

[MB engineer]

The problem is the alloy shaft which runs in the mechanisam it is seized, the motor is a 12v motor and rotates with no tight spots, battery would never cause this prob as the alternater voltage drives all auxillarys when running

 

[mickl]

bloody upper cover came off today when I was on the M6.

Does anyone have a part number for it?

ta

 

[PJH]

bloody upper cover came off today when I was on the M6.

Does anyone have a part number for it?

ta

Ian walker may have a spare.

 

[Shude]

which bit?

 

[mickl]

bit #170

 

[996jimbo]

See this thread also:
http://mbclub.co.uk/forums/showthread.php?t=22263&highlight=wiper

There's a lot of it about!