Question edited for clarity, you forgot Herr. Benz.
Question moved from Spanish Car maker category Seat, (pronounced See-At) and nothing to do with car seats.
Can you hear the motor running? It can only be 5 things
Fuses
The Switch
The Motor
The linkage and drive
The Power Seat Module
Look underneath with light and mirrors. Or remove the seat to look.
Help in the link
https://www.google.com/search?q=mercedes+cl550+seat+lift+not+working
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Question edited for clarity.
Question moved to model category.
Waiting for oil to drain from the upper engine to the bottom oil pan. It is all explained on the forums and in the attached video.
How do I get my Mercedes out of anti-theft mode?
Look for a button that allows you to slide the physical key out of the fob.Step 2: Turn the vehicle key to unlock the car door without releasing it.Hold the key for 30 seconds in this position. This will signal to your car's system that you have the right key, and will enable you to bypass your car's alarm system.
https://www.google.com/search?q=MERCEDES+BENZ+C+CLASS+reset+security
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This model has its fuel tank in two compartment. one on the right, the other on the left. When you fill it full tank, both sides will be filled. When engine is running, the fuel pump sucks fuel from only (RIGHT SIDE) of the compartment. And the excess fuel is sent back to the LEFT SIDE of the compartment via the return pipes.
When you reach half tank mark, the fuel in the RIGHT compartment dries out and the engine dies out but the fuel gage still show half tank.
This setup depended on the siphoning effect by the pipes in the tank to suck fuel from the other tank and send it to the pump side tank.
Read this forum on how to they solve the problem.
https://mbworld.org/forums/c-class-w203/279833-fuel-system-info-needed__gas-not-returning-pump.html
Get this looked at as soon as you can, ignoring it will cause extra wear on other parts pushing the cost of repairs from 'Ouch' to 'Aaaarrrgh!'.
The thump may not be the brakes. Does it thump as bad if you do it in reverse? As the vehicle brakes it's entire weight shifts forward so the most likely cause will be something worn out on the suspension, usually parts like a worn rubber bushing, worn shock absorbers (dampers), or a broken spring. Get all four corners of the suspension checked over as sounds can travel and appear to be coming from a different area of the car.
As to the camber. It should have a tiny amount of negative camber as this helps prevent 'Wheel Tuck'. This is where the wheel and tyre tilts or folds under the vehicle during hard cornering. Tucking can 'pop' the tyre off the rim risking the vehicle tipping sideways and rolling over.
I would say your headlights have burned out. Often times people will lose one and not notice until the other one also burns out. If you can get someone with a voltmeter to check at one headlight for 12-13.8 volts while the headlights are switched on. If voltage is present at the connector then the bulb is burned out most likely. I've seen this many times. Your high beams probably work.
Most mercedes have a jump start point under the hood the positive is in a black box with a red plus sign on it and the earth is a long bolt head near the positive bolted to inner arch
