How often should air-con system service be done on my vehicle? What would be an ideal service interval for preventive maintenance?
The service interval would vary not only based on the type or model of the vehicle but on the conditions of use. The mileage of the vehicle will also matter in this case. The air-conditioning system, after all, can be heavily exposed to moisture, extreme temperatures, mechanical shock, and vibrations depending on how and where you drive. For average use, however, with annual mileage of 12,000 miles, air-con service can be done every 1 1/2 years to 2 years. This will help keep the air-con working at its optimum condition. This will allow all the components to operate with greater efficiency, thanks to proper maintenance. If the vehicle is used on the off-road or it's heavily used, with over 24,000 miles a year, service should be done more frequently. It should be scheduled every year.
The A/C compressor clutch won't engage. What seems to be the problem with the air-conditioning system of my Volkswagen?
Failure of the A/C compressor clutch to engage when the A/C system is switched on can be blamed on numerous factors and reasons. One of them is the lack or loss of refrigerant. When the system doesn't have sufficient refrigerant, the cycling switch may not engage or activate the compressor since this serves as a safety mechanism for the compressor. Bypassing this safety switch can cause problems to the system. The lack of refrigerant will also cause insufficient lubrication around the system. The clutch mechanism should be checked. Another reason for its failure is that it may be seized with corrosion or debris or grit has built up, which can happen when driving in flooded areas.
The engine of my Volkswagen Campmobile misfires a lot, so I took it to a repair shop to have this problem handled and fixed by a certified mechanic. The problem was fixed, but a friend told me that the mechanic overcharged me for the service. How can I make sure that I won't be overcharged the next time I'll take my Volkswagen to a shop for repair?
Look for a repair facility with good reputation and proven track record. Referrals would help. Before getting anything done on your vehicle, first ask for an estimate from the mechanic. You should have an idea about the cost of labor, price of the parts that will be used for replacement, just in case, and the repairs that will be done on the vehicle. Compare this with other rates and estimates from other shops. Talk to the mechanic about the car problem. If upon inspection and during repair, the mechanic finds out that there's more work to be done on your vehicle, you should be informed beforehand. You should be given the cost for the extra work before getting this done. The invoice should contain all that you need to know. There shouldn't be a hidden charge or cost.