CEM headlight issue
 

Guy's I brought my CEM from Ebay working no issues
cost and this is true £5.00 post £0.99 for the item
total £5.99
right chuffed

Well done, I got £40 for mine! Took a while to sell though

With one dim dip headlight down, I replaced both dim dipped relays on the CEM with RS Component's part number 2172876 at a cost of less than €10, got a friend to solder them in and it worked a treat! Thanks once again to all who posted to this thread and others.

How do you take the old relay out? and how do you replace it with another?

You will need a soldering/de-soldering iron. If you have never soldiered before it's not the easiest job to do

Hi all and thanks for the info Russell. I too have a suspected CEM problem but I'm unable to track down a replacement for this particular part number (30621304) which appears to be for the LHD version and the only ones I can find are in America.

I'm beginning to wonder if I have the correct CEM in place and would be grateful if anyone can confirm the part number. My car is a 2002 V40 1.9D S, registration number WK02 MZX.

I changed the bulbs and can confirm the new ones are working (tried a different CEM that I thought might work 30858700) but it left the lights on all the time and a meter read at the fuses is showing no power.

Many thanks in advance

Depends what your Chassis number is. Check the last 6 numbers on your VIN.

See here:
Control unit [-2001, L.H.D (30859699)] 30896697
Electronics box [2002-, L.H.D (30621304)] 30638707
Control unit [-2001, R.H.D (30859700)] 30896698
Electronics box [CH 800000-026445, R.H.D] 30621305
Electronics box [CH 026446-, R.H.D] 30638708

Yours will either be the 30621305 or the 30638708

I think I have both in case you want one and I can enable/disable the fogs, rear wiper etc

I am 99 % sure that only difference between LHD and RHD version is in housing - position of mounting tabs.

I think so too.

is your car a LHD ? I have a feeling it may be an import ... and not visited a volvo garage over here ..