Very bad interior odour

[Petrol Pete]

The metal battery tray looks like this once cleaned and painted. Note indents for 3 different battery sizes, guess it's a common part for all S203 C class of the same era no matter what size battery is fitted.

 

[optimusprime]

That area under battery tray ,,is one area that water just loves to sit until the car is moved . So a good coat of waxoyl is the best thing to put down in there .Or any type of wax shield to keep damp out . If the car is nice and clean paint it with clear inhibitor it would look nice .

 

[55AMGCLK]

The metal battery tray looks like this once cleaned and painted. Note indents for 3 different battery sizes, guess it's a common part for all S203 C class of the same era no matter what size battery is fitted.

View attachment 92864

What paint did you use Pete? Looks new. I need will need to check and spray mines.

 

[optimusprime]

Chassis black or just mat black i did mine with black hanerite not because it was rusty ,,but for further protection .

 

[Merc220cls]

Care you sure the smell is coming from the AC.
My son had a CLK and it was a bit miffy on the inside.
I removed the drivers side carpet (after removing the throttle pedal) and gave it a power wash. It was the filthiest carpet I’ve ever seen and took a good 20 minutes with the power wash to remove the dirt. I also power washed the engine bay and scuttle area making sure all the drain were clear.

 

[Petrol Pete]

What paint did you use Pete? Looks new. I need will need to check and spray mines.

it was a can of Ambersil satin followed by a few coats of Rust-Oleum crystal clear , clear top. Not specific for this job , just a few part used cans I had lying around. TBH I would have painted it pink - just to keep the rust off - if thats the only colour I could find in my workshop. no one is ever going to see it !