Had the very same issue with my puddle lights when my S350 was only 18 months old, at time they were placed under the manufacturers warranty.
Afterwards when the car was out of the 3 year warranty all four led lights in the door handles died within two months of each other, moisture damage also. Its almost like they planned it to fail outside the warranty. Got a quote to replace them in a local MB dealership in Ireland almost fell over at the quote 600 euro
![Frown :( :(](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f641.png)
Door cards have to be removed crazy system.
Ended up doing some research got the WIS instructions and watched a few videos online replaced them myself at a cost of 20 euro each for the part.
Heres the video for anyone interested
I've come to the realization if Im going to keep my sclass I'll have to do some of the work myself, so far I've done the following:
* Oil + Oil Filter change
* Air Filter Change
* Front brake disc & pad replacement (Original factor disc warped after 35k miles - MB Ireland quote was 1200 euro did it myself with the same parts they were going to use for 380 euro)
* Install Desiccant Gel packs every six months to clear up moisture inside the headlight, cost of 20 euro each time, better than waiting for failure of the headlight which were replaced 3 times under warranty (2k euro each time)
Sorry to hijack your thread OP, but I guess what Im saying you can expect alot of little things to fail my plan is to repair as much as I can myself, I'll still take the car into the MB dealership for its service just to keep a full service history on it