KADE

Anybody ever do a sun sensor replacement?

Did diagnostic code check..and says bad sun sensor.

All I know is that it's that small black piece on the center dash, near the defrosted vents by front windsheild. LQQks like a hard spot to get to!

raymond g-

use your fingernail.
pull up.
swap out.
push down.
15 secs

KADE

Thanks raymond, Had no idea it would be that simple

E420SportGT

what's the sun sensor for?

'91 300CE

It keeps track of the position and intensity of the sun and adjusts the climate control on both sides to compensate.

E420SportGT

ohhhhh I thought the AC just has a temp sensor one on each side haha.
thanks

KADE

And the ambient temp sensor sticks out just beside the driver fog light, which gives you the temp. reading on the inside dash cluster at least on my 2000 thats were its located.

Musikmann

Two different things. Sun sensor senses sun (light in other words), temp sensor senses temp. There are some of both on your car; internal and external for the temps.

KADE

Okay does anyone know the part number for the sun sensor

One dealer says he couldn't find it at all, after I gave him my vin# Another dealer said he'll call me back; And I could not find it on any benz parts websites.

Raymond.....any suggestions?

raymond g-

bookmark this site....
http://www.detali.ru/cat/oem_mb0.asp?TP=1

found part illustration, then xref the # over on OEMPARTSDIRECT web site...
shown below

Yacht Master

Raymond, I was under the impression that the sun sensor would always display fault in the diagnostic even if it was good and working. Did you replace yours? and if so did you recheck the diagnostics again to see if it was working?

raymond g-

you may be correct. mine showed up under fault code. no, i did not replace
based on similar understanding as you.

Yacht Master

OK thanks, cause I tried to check it out in the sun and in the dark and got a sun sensor fault both times, but my A/C works quite well and is still on the factory charge.

Down South

When i go onto that site and click on my model "E320", nothing happens after that. The page is black and at the bottom it say "done"

raymond g-

is the page displayed really black in color? did you scroll down?

Down South

I meant to say "Blank", but I figured it out now...Thanks

Down South

I meant to say "Blank", but I figured it out now...Thanks

KADE

Thanks again raymond, everytime I search in the parts section on multiple website's, I could note find it under word "sun sensor", but maybe now with the part number# I can located it.

So do you think its defective? or just getting a false read out from the ac diagnostic test?

I'm not having any problem, but felt that if I got that malfunction code maybe it was on the fritz I guess as they say, "if it ain't broke don't fix it"

ohlord

Read my post from last week about a/c tips.The sun sensor will have no detrimental affect on your a/c operation,so fix or not you are ok.Clear the codes as instructed and see if it stays cleared.
ohlord

phil55

http://www.pelicanparts.com/euro/cat..._pg2.htm#item9

KADE

Thanks for the sight phil55

KADE

Thanks for the sight phil55