e class interior lights

[andy66]

this is a strange one......their is a buzzing sound/vibrating coming from the front interior light cluster in my e280 when the ignition is switched on,i have removed the cluster to take a quick look but cant see anything wrong..any ideas please

 

[Daeths]

Andy, it must be a Kent thing, my 2001 E class does the same. I posted a similar query but no joys on this one I'm afraid. It doesnt get warm and only occurs when the lighht comes on and off on mine sot I have left it and soome 3/4 months no probs (touch wood)

Adam

 

[Parrot of Doom]

Normal or HID lights? Try disconnecting the vacuum line at the back of the cluster if its a standard light. The lights will angle down but if the noise stops you've found the problem.

 

[Daeths]

Normal or HID lights? Try disconnecting the vacuum line at the back of the cluster if its a standard light. The lights will angle down but if the noise stops you've found the problem.

I thinks Andy's problem relates to the interior light rather than the headlamp (if not, I'll be gutted I've not got the vacuum dipping interior lights - :lol::lol

Rgds

Adam

 

[Parrot of Doom]

Yeah just spotted that! DOH!

If its buzzing, its probably because the light will use a dimmer circuit, and over the years various components in the light cluster become loose because of hysterisis from the transformer (if it has one).

What you'll have to do is completely remove it and check all components are tight, and that includes solder joints.

 

[sixpack]

Buzz

Hi,
Does the E class have the little sniffer vent for temperature sensing ?. My C class did, and the motor went noisy like you describe. Strip and oil the bearing, fiddly but do able.

Peter

 

[andy66]

thanks for your replies lads,had a better look and it seems to be coming from a seperate unit within the interior light unit and is not connected to the lights(it is behind a vent on the main unit and is connected to a four pin plug..could be what sixpack has said)...why is their a tempreture sensor in the car?-i have standard air con,not climate control

 

[Parrot of Doom]

MB standard AC is temperature sensitive, you set the dials to whatever temperature you want and it tries to maintain it. It just doesn't have motorised flaps.

 

[Blobcat]

There is a little fan up there the aspheric motor, here are a couple of threads on it; http://forums.mercedesclub.org.uk/showthread.php?t=24064
http://forums.mercedesclub.org.uk/showthread.php?t=23635

 

[andy66]

thanks again ..great advice as usual