A-Class (W168, W169) A140, A160, A160 CDI, A170 CDI, A190, A210 Evo, A180

W169 (A150) Fuel Compartment Door Problem

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Old Dec 30, 2015 | 07:15 AM
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Don Giovanni's Avatar
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From: Lisbon
A150 W169 2004
W169 (A150) Fuel Compartment Door Problem

Hello!
I own a A150 MB, 10 years old.

The fuel compartment door has a trigger mechanism that locks it when the car doors are also locked. However mine is broken, it's always open.

Can someone help me?
Is it a vacuum system or electromagnet lock?
How to access it? must I take out all the boot cover panels?

Thanks,
Nuno=Don Giovanni
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Old Jan 1, 2016 | 05:08 PM
  #2  
Don Giovanni's Avatar
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Joined: Dec 2015
Posts: 8
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From: Lisbon
A150 W169 2004
SOLVED

SOLVED

I'll leave this info here, it may be useful:
  • W168 has a vacuum lock for the fuel compartment.
  • W169 has an electromagnetic lock.

The easiest way is to remove the rear lights (RHS of the car) and work through that hole and through the boot compartment.

Be careful when removing the plastic cover of the rear lights as it is fitted behind a "triangular" trim (the one placed just above the lights).
I tried to remove the triangular plastic but I was too hard. It has some sort of a clip holding it to the car.
Just remove the light bulbs and unscrew 3 bolts (wrench size 8) and gently pull out.

Refitting was even harder! The cover has 3 screws and it's almost impossible to fit the screws through the holes on the car body and simultaneously place the cover behind the triangular plastic.
I sawed the screws reducing their length to 1/3. With this it was easy to place everything in the proper spot and there was still plenty of screw to refit with the bolts.
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