I'm looking for some advice ... I recently had to have my pride and joy repaired, and the bodyshop concerned put the roof down without undoing the rear zip. The result of this is a really annoying couple of wrinkly bits on the rear window, this is particularly frustrating because I only replaced the hood about 4 months ago! Does anyone have any suggestions for smoothing out the wrinkles? (1/00)

The wrinkles should come out as the window gets hotter and colder (1/00)

The wrinkles should come out with time, especially if you can park in warm sunshine (!!!!!). Or can you park in a (very) warm garage? Or you could speed things up by gently playing a hairdryer on the screen - but be very careful! - just get it warm to the touch- not hot , and try to warm it evenly all over . Keep the hood up for a while anyway, to keep the screen in tension. (1/00)

I've just collected my 93' MX5 from my local dealer, after having the rear window replaced (under warranty)..... It now has more waves in it than the Pacific...the dealer told me that they had it in their spray bake, and with a little more heat (I.e. summer) it will straighten out..... is this true... or have they just fitted it wrongly.... (2/01)

I think that'll be a trip back to the dealers. Again Mazda UK and their expert dealers astound me. If they were supplied with a dodgy screen (although unlikely)they should have sent it back. I can't think of a single sensible reason why they would put a car in their spray bake that wasn't having paint work. (2/01)

When I had my mkI soft top and replaced the plastic rear screen that was very wavey too. I was also told that it will unwrinkle after a while, but it didn't. Turns out the only way to sort it is to have the zip resewn into the material and the plastic pulled more taut (is that bad Engish?). Take it back and tell them you want one that is unwrinkled to start with, if they won't replace it, get them to produce a written guarantee that they will replace it in the summer if it doesn't unwrinkle itself. (2/01)

The zip has to be replaced at the same time as the rear window, this is because the pitch of the zip that comes with the rear window panel is different to the zip that is attached to the roof, in my experience the waves on the rear window will worsen in time, there is a technical bulletin that the mazda dealer would have regarding this problem, so they should have no excuse putting it right. (2/01)

Check that they actually supplied a genuine Mazda part. At one local Mazda dealer over here it took them 3 attempts to supply an actual Mazda top as opposed to aftermarket effors (the difference in fit is astounding..). (2/01)

Mine was fitted by a dealer 3 years ago and still has waves.  Never bothered to have it taken off and re-aligned though.  I guess it is due to the zips mis-aligned slightly.  (2/01)

Here's a company discovered in Exchange and Mart that I haven't heard of before http://www.purspexvision.com/ I'm sure they had a price list in the printed version (can't check - was just reading it in Tescos) - but there's not much price info on the website There's online instructions for replacing an MX-5 rear window (5/01)