SL/R230 light sensor visit workshop

Jun 23, 2020 | 10:23 AM

imtheking

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Former R230, W220 and W221 owner

light sensor visit workshop

2003 SL500

Can someone provide a part number please? And maybe some instructions on how to change this? Thanks as always

Jun 23, 2020 | 11:07 AM

pmercury

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A2208300272
replaced by
A2118700110
replaced by
A2118701310

Jun 23, 2020 | 11:20 AM

pmercury

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Jun 23, 2020 | 01:13 PM

imtheking

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Former R230, W220 and W221 owner

thank you!!!

Jun 23, 2020 | 06:02 PM

sivikvtec

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2005 SL65 AMG

I got this warning when my consumer battery had low voltage. It went away after the battery was charged back up.

Jun 23, 2020 | 08:04 PM

bobterry99

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From: Atlanta, unfortunately

'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55

When there is a fault code or message for a component I'll guess that more often than not there is nothing wrong with the component in question. This is one reason to avoid wasting money it is important to do some basic troubleshooting in such instances rather than immediately reaching for a new part. In this case the problem could simply be a blown fuse.

Jun 23, 2020 | 08:14 PM

ItalianJoe1

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From: Miami, FL

2003 CL 600

Quote:

Originally Posted by bobterry99

Yes and no. Fuses don't just blow, they are there to protect the component and if they go open, it was for an outside reason. I will say that most of the time, there is a defective part, but proper diag will prevent you from throwing 4 parts in there to get the one that actually failed. Wiring connector/harness issues can happen but are much more uncommon.

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Jun 24, 2020 | 09:35 PM

ItalianJoe1

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From: Miami, FL

2003 CL 600

Quote:

Originally Posted by bobterry99

I do not wish to be pedantic, Joe, but having done some electrical design in my career I can state with confidence that fuses generally exist to protect electrical wiring -- not components.

True, it's so the wiring doesn't overheat and cause a fire. But you know what I mean, the problem is almost always NOT just the fuse.

Jun 25, 2020 | 09:25 AM

#10

imtheking

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Former R230, W220 and W221 owner

Quote:

Originally Posted by sivikvtec

I got this warning when my consumer battery had low voltage. It went away after the battery was charged back up.

I've have this warning for over a year- didnt care until I started getting other malfunction errors for blown tail light and brake bulbs. Light sensor message came up even after changing the both the main and consumer battery- I bought the part used from Ebay for $15

Lifted the hood last night and it looks like an easy fix- take off a few screws for the mesh cover and it's right there- you can actually see the sensor from the top of the hood.

Jun 29, 2020 | 09:14 AM

#11

imtheking

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Former R230, W220 and W221 owner

Replaced the part- pretty easy- lift the hood, remove 4 screws and take the cover off. Be careful not to break the plastic

Remove light sensor and replace

Jun 29, 2020 | 10:47 AM

#12

pmercury

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did this fix your visit workshop light

Jun 29, 2020 | 10:58 AM

#13

imtheking

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Former R230, W220 and W221 owner

Quote:

Originally Posted by pmercury

did this fix your visit workshop light

yes

Jun 29, 2020 | 11:41 AM

#14

imtheking

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Former R230, W220 and W221 owner

Spoke to soon- error message still there

what is the fuse location for this sensor?

Update- looks like its fuse 47 on the passenger side fuse box- fuse looks good

Maybe a bad sensor- it was used after all- dont know- will take to shop- so annoying

Last edited by imtheking; Jun 29, 2020 at 02:06 PM.