Hi Urs, I would need you help here with the fuel filler flap solenoid. So I also have some issues with it. It does rarely work so I took it off the car to test it. Resistance is perfect and it also works perfectly when I attach it directly to 12v. But in the car when plugged to the connector it does nothing as the voltage at the connector is too low. So I would assume that it is the ground as well. Can you describe where I can find it's ground exactly so I can clean it? Do I need to take the wheel liner of the left side off? Best regards
Hi schelle_pelle The grounds are on the lh vertical chassis member near the two main engine harness plugs. No need to take out the wheel arch but I usually remove the alloy chassis trims so I don't damage them while working. The other thing to check may be the switch. The contacts on mine were fairly burned and cleaning them up helped also. I suspect there is a bit of power loss in the old lines too. Good luck!
Thanks Urs for the quick reply. So the access would be from underneath the car? I just have one alloy cover right behind the oil pan. Image Unavailable, Please Login
No, from above on the lh side of the engine bay. If I am not mistaken, that ground wire bundle includes the filler flap and also the plate lamps: Image Unavailable, Please Login It's located on a weld stud here: Image Unavailable, Please Login The alloy you're referring to is actually an air scoop guiding air up the rear firewall, cooling headers and final drive and filling in the low pressure area on the engine bay to kill some lift and reduce drag. The 2 mounting bolts should include a spacer between the scoop and the chassis, about 15mm tall. Image Unavailable, Please Login Image Unavailable, Please Login You can just detect the distance of the scoop from the chassis on this old picture of my car before restoration Image Unavailable, Please Login
Hi Urs, as always your answer is highly appreciated. Now I get the location of that ground wire. For some reason I expected a thick woven copper wire. But yes, now I know which one you are referring to. I'll check, clean and report here. Thanks also for the hint concerning that "air scoop"! I initially thought of it as a protective cover. And as you saw it right that spacer is no more and I did not know that it was missing... It also does not show the spacer on Tavola 19? Best regards Michel View attachment 131928
You're welcome Michel and yes, 11 is referred to only as a washer and drawn quite thin. You'll find that when you add a spacer the scoop will be horizontal at the bottom and vertical at the rear and also easier to refit.
Moin Schelle_Pelle, My fuel flap did not work at all and I had to open it with the pull-strap from the engine compartment. However: After a good spray with De-Oxit (in our case Kontakt 60 from Conrad Electronic) it works like a dream.... Try that before fiddling with wires. Best, Mondi Cab
Thanks for the additional info! That's exactly my scenario... Sometimes it still worked. 1 out of 30 tries... ;-) Don't want to hijack Urs' thread too much, but just one more question... Where exactly did you spray that Kontakt 60 (have that in my shelf)? On that ground strap contact?
No, directly into the switch on the dash. Use the thin straw in order not to spray to much around on the plastic, but spray in the gap between switch and surrounding. (in die Ritze !) Then cycle the switch several times. At a certain moment my flap popped open and I knew I was heading the right way.... Worked for my slow rear-right window as well
I would take the switch out, a bit more involved to remove the control plate to do that, but many electrical cleaners will dissolve or stain the plastic cover, spraying in situ will inevitably have some overspray or drops land on the plastic.
