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Hi Guys, I have read the other threads regarding the broken flap hinges.
This is a basic "How to Replace"

Drill out the 4 indents in the corners a 5mm drill is ample, don't go too deep just break thru the outer.
On the Left hand side there is a little panel, to remove this use a very small flat screwdriver and GENTLY prise the 2 small locators on the top (see pic)
Pull the plate out and top down to remove the locking mechanism, remove the wire connector.
Use a small probe, starting on the left hand side, push thru your drilled holes to push the tabs behind out of the way. These will break off if pushed hard.
Put your fingers in the hole where the lock was and pull out the left hand side. When it is just out, prise the rubber boot over the filler neck and wriggle the unit out whilst turning to the right hand side.

3542
3543
3544
3545
To fit the new unit, part number MB-A2536305902.
Insert the left hand (hinge) side first , pull the wire connector thru the hole and attach it to the lock mechanism. wiggle the rubber boot around the filler neck and push unit hard until fully in place, push the lock into the slot and push tabs back in place. Refit fuel cap holding wire in slot and refit filler cover plate. Simpelz.
MB want 2.5 hours and $600 Au. to remove and refit this part. Took me 25 minutes to get it out and 3 minutes to replace.
 

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Hi Guys, I have read the other threads regarding the broken flap hinges.
This is a basic "How to Replace"

Drill out the 4 indents in the corners a 5mm drill is ample, don't go too deep just break thru the outer.
On the Left hand side there is a little panel, to remove this use a very small flat screwdriver and GENTLY prise the 2 small locators on the top (see pic)
Pull the plate out and top down to remove the locking mechanism, remove the wire connector.
Use a small probe, starting on the left hand side, push thru your drilled holes to push the tabs behind out of the way. These will break off if pushed hard.
Put your fingers in the hole where the lock was and pull out the left hand side. When it is just out, prise the rubber boot over the filler neck and wriggle the unit out whilst turning to the right hand side.

View attachment 3542 View attachment 3543 View attachment 3544 View attachment 3545
To fit the new unit, part number MB-A2536305902.
Insert the left hand (hinge) side first , pull the wire connector thru the hole and attach it to the lock mechanism. wiggle the rubber boot around the filler neck and push unit hard until fully in place, push the lock into the slot and push tabs back in place. Refit fuel cap holding wire in slot and refit filler cover plate. Simpelz.
MB want 2.5 hours and $600 Au. to remove and refit this part. Took me 25 minutes to get it out and 3 minutes to replace.

Great info... I just replaced mine. I ended up drilling out the indents to remove the old pocket, as suggested. I saw an article that proposed removing it without drilling out the indents, but struggled.

The part was $150 from the local Mercedes dealership without the stickers; I'll replace those later. The three (3) stickers must be purchased separately and range in price from $10-$18+... I was told by the dealership the fuel sticker required proof of ownership. That's not really a big deal.. but I'm checking out less expensive options. I feel the decals/stickers are only important in resale.
 
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