2007 W211 Estate - High Level Brake Light out!

[Any_Name_You_Wish]

Morning all,

MOT day yesteday and got an advisory on the high level brake light being out. Anyone had this before? My gut reaction is it is unlikely to be the unit itself, more a connection.

What are your thoughts?

Cheers

 

[Blobcat]

Probably water damage to the circuit as they can leak.

 

[Any_Name_You_Wish]

Do you mean in the actual light unit itself? That would make sense as however sealed a sealed unit is, 13 years on the top of my boot could unseal it!

 

[Blobcat]

Do you mean in the actual light unit itself? That would make sense as however sealed a sealed unit is, 13 years on the top of my boot could unseal it!

Both, the rubber seal between the 3rd brake light and the car body can leak, this in turn can cause water to get into the light unit and corrode the tracks and LED's.

 

[malcolm E53 AMG]

Both, the rubber seal between the 3rd brake light and the car body can leak, this in turn can cause water to get into the light unit and corrode the tracks and LED's.

Exactly happened on my 210 estate, what a faff replacing it, I used silicone sealant when replacing