Main dealer - Vospers in Plymouth - told me aircon on my 2 year old Renault was within normal range, when I had the car in for service and mentioned that it did not seem to get very cold, but I wanted a second opinion and booked into Halfords Auto Centre for an aircon service. Glad I did - very easy to book online, good price and very efficient service. More to the point, I was told that the system was not working properly as it only had 70 mg of refrigerant in it ... needed 480! No leaks found so just poor service from the main dealer. Give Halfords a try.
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Surprised to learn that Halfords Autocentres are only judged on financial daily/weekly/monthly targets (eg £1900 per day) which encourages centres to promote more work during servicing/mot's that may be desirable rather than essential? Is this true?