Now for the product ....
I was skeptical about the here so often acclaimed action of the contact cleaner and was but (merely good) disabused.
The problem case for me: Obviously corroded plug contacts of a car, whereby the contact problems wrong sensor values generated and led to a deteriorating motor running. PASSED! .... Because the spray did his job excellently solved!
To notice would be even, that I have taken enough time to let this affect me and the loosened dirt then rinsed with alcohol from the plugs have (so nothing while smoking please! ;-)). After complete evaporation of Restpiritus I got the plug contacts again with the spray conserved (because that means this PLUS) and allow to dry everything beautiful again before the plugs are pushed back together.
Having thus a years of annoying problem is finally off the table, I'll just take these cleaning procedure for normal maintenance of older cars, because damage can not yes.
Conclusion:
The contact spray works really well and has convinced me completely. With so much electrical and electronic systems in this day and age will still find a lot of opportunity to apply.
