The air conditioning unit of my wife's TD4 es (2000X) only tends to be used in the summer when the hot air arrives, and reading the posts here it seems it should be run frequently to keep it in good working order. I'm not sure if this has led to the following problem.
This time last year the vehicle started eminating a horrible grinding noise when the steering was on full lock at pulling away speeds, and after a bit of deduction it became apparent that this only occurred when the A/C unit was on. The temporary solution was not to use the a/c. As often happens the temporary solution was not revisited. Now the hot weather has returned, the a/c has been switched on again and it makes a (seemingly permanent) horrible clattering noise.
I dread taking the vehicle to the dealer wthout having at least some idea of what the problem is and what the likely cost will be and I wondered if anyone could give me advice!
Having received such great advice regarding the maf problem I really appreciate this site