SL500 2002 - Heated Wing Mirrors

[Paul Fairbank]

Both of the wing mirrors on the car are permenantly on when the ignitions on. The drivers side mirror has become disscoloured and patchy.

I cant find anywhere to turn them off or to start looking for issues. I guess its something to do with the thermostat in the mirror its self but would welcome some ideas on where to start.

Thanks

Paul

 

[Cole@MBS]

The heaters run of the out side air temp sensor, I think your find that the dullness in the driverside mirror is the antidazzel breaking down, common with this type of lens, it can be replaced with a standard clear mirror.....

 

[television]

This is not the heater part, it is the dimming glass that has leaked out all of the fluid, the glasses cost some £300 but if you are not bothered about the dimming function you could fit a standard heated on or use a £10 stick on glass over your existing one where the heated part will still work

 

[Paul Fairbank]

Where is the outside temp sensor?

 

[television]

Where is the outside temp sensor?

The signal is taken from the car air temp sensor and the circuit turns on at below plus 5c, it is all CAN controlled

 

[Paul Fairbank]

Do I just gently prize the mirror out?

Found this site for mirrors

http://www.ebay.co.uk/itm/MERCEDES-...arts_Vehicles_CarParts_SM&hash=item5ae2bda0e4

 

[television]

Your car is a 2002 the same as mine,, there was a change in 06-02 I need the last set of numbers after the F in the vin number

 

[Paul Fairbank]

progress on wing mirror

The numbers are 022192

I have prized the mirror off and am just about to stick the new one in. There are two pins for the heated bit and a connector to something, the anti Daz??

So far so good.
Paul
the other mirror is still hot tho'?

 

[television]

Yes just tape up the dimming sensor wire.

The other one should not be hot this weather, I will take a re read of how they work on the 230

 

[Paul Fairbank]

Mirror

Well its in and working. Will check if it heats up. Many thanks for your advice.

Paul

 

[Alex Crow]

paul, does the dash display the correct outside temp figure?

 

[Paul Fairbank]

temp check

Alex, will check this afti. Positivly tropical here in Cheltenham.

 

[television]

These mirrors heaters are switched on at temps below 5c via the front SAMs, the door controllers and the air temp sensor up front

 

[Paul Fairbank]

Alex

Temp displaying ok, bloomin hit today!

 

[Dec]

If your mirrors were on permanently then the would get hotter and hotter, so hot that you wouldn’t be able to touch them.
There temperature should fluctuate between hot… like a cup of tea… and warm/cool over a 2 or 3 minute period.

Can you put up a picture of the discoloured and patchy mirror?

Dec

 

[television]

If your mirrors were on permanently then the would get hotter and hotter, so hot that you wouldn’t be able to touch them.
There temperature should fluctuate between hot… like a cup of tea… and warm/cool over a 2 or 3 minute period.

Can you put up a picture of the discoloured and patchy mirror?

Dec

The old one has lost its fluid that dims it, its doubtful that there are 2 faults like the CAN circuit and the mirror thermostat

 

[Michael_Dinwiddy]

Had the driver door mirror leak fluid on our c220, new one costs hundreds of pounds for replacement lens. Got standard replacement off e bay for £40,

 

[Dec]

The old one has lost its fluid that dims it, its doubtful that there are 2 faults like the CAN circuit and the mirror thermostat

Paul doesn’t mention fluids so was assuming it’s the non dimming type mirror and not this fault that is illustrated here… http://forums.audiworld.com/showthread.php?t=1756955

Dec

 

[television]

Had the driver door mirror leak fluid on our c220, new one costs hundreds of pounds for replacement lens. Got standard replacement off e bay for £40,

The worst thing that happens is the fluid is highly corrosive and it can strip paint from a door

 

[television]

Paul doesn’t mention fluids so was assuming it’s the non dimming type mirror and not this fault that is illustrated here… http://forums.audiworld.com/showthread.php?t=1756955

Dec

They are standard on a 230 dec, not an option, and the funny colour is the give away clue