Last year had all four arches stripped and sprayed. The paint shop told me to keep the inside lips of the arches creased all the time. If it works it is an easy solution and at th least slows down the rate of rusting ?
Last year had all four arches stripped and sprayed. The paint shop told me to keep the inside lips of the arches creased all the time. If it works it is an easy solution and at th least slows down the rate of rusting ?
I had exactly the same done to my 1999 CLK. Two years later the bubbles came back. Had it all redone at a high quality paint shop (for more money of course), but this time they used a black sealant on the insides of the lips for better protection. Even so, they said the problem could still be back. Apparently the design of the inner arch protector is bad and encourages dirt and water to sit behind the lip where it starts to do its ill deads. he advised me to make sure I clean behind the wheel arch lips every time I clean the car for the best success. I've no idea whether or not they're any better now because I sold the car a year ago.
I've taken the body shop's advice on board and regularly clean behind the arch lips on my new C-Class, not wanting to risk problems a few years down the line.
While much of the problem is prbably attributable to deisgn faults and poor manufacture in some cases there is a lot of truth in keeping areas that tend to allow road grime to build up clean preventing issues in the future. I own a 2000 Subaru Impreza which are well know for having rusting rear arches by now, but I have owned mine since it was 3 years old and always meticulously cleaned behind all the arch lips etc. It is completely rust free whereas most others I look at are starting to bubble. Can't hurt to do the same with any car really.