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Car Mechanics

Car Mechanics August 2018

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Car Mechanics is the UK's only car magazine with essential advice on maintaining and repairing popular makes and models. It’s an invaluable motoring resource that appeals to both the DIY car enthusiast and the more experienced motor trade professional. Car Mechanics has helped save money for our readers every month since 1958. Each issue includes a wide range of in-depth features written in a clear, straightforward manner: • Readers’ motoring-related problems answered for FREE • Real-life motoring dilemmas from our man in the garage trade • Electronic diagnostics delves inside a different modern vehicle each month to explain its management system • Survival Guide looks at new and used component prices for a particular vehicle • Used Car Focus is an in-depth buying guide on a specific make and model • Service Bay covers a full service with close-up images and comprehensive descriptions • Project cars are a major part of the structure of the magazine as we buy, fix and sell different vehicles over a period of months So if you're into saving money and being a home technician, Car Mechanics will help you out - guaranteed!

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Land:
United Kingdom
Sprache:
English
Verlag:
Kelsey Publishing Group
Erscheinungsweise:
Monthly
AUSGABE KAUFEN
4,16 €(Inkl. MwSt.)

in dieser ausgabe

3 Min.
keeping cool

Just recently, we have had a lengthy run of blazing hot, sunny days and humid, sticky nights. If your car is equipped with a button that indicates ‘AC’ or ‘aircon’, then I’m sure most of you will have activated it at some point over the past few weeks. However, some motorists aren’t keen on operating the aircon system at all – winding down the windows for fresh air is fine with them. Many people worry that the system will increase fuel consumption. And some motorists don’t understand climate control and how it operates, helping to not only maintain a stable cabin temperature, but assist in clearing steamed-up windscreens. If you fall into any of those categories, then you should read our special air-conditioning feature, starting on page 6. It explodes a…

1 Min.
haynes manuals

In the Help! pages in the July 2018 issue, we published a reply to a reader’s request to find a workshop manual for a Ford Kuga. We pointed the reader to Haynes online service, but went on to say: “Haynes is not producing workshop manuals for the vast majority of modern vehicles”. This was picked up by Haynes, who questioned our evaluation and we are happy to publish their comments. Haynes Publishing’s marketing manager, Craig Stewart, said that while they can’t cover every model available in the UK, they are still proactive in producing workshop manuals. Craig goes on to say: “I was surprised to read in the July issue of Car Mechanics that Haynes is not producing workshop manuals for the vast majority of modern vehicles. On the contrary, this year…

8 Min.
controlling the climate

While the humble refrigerator is one of the most reliable of household appliances, vehicle air-conditioning requires regular servicing and periodic regassing. Even though domestic fridges and car aircons share similar operating principles, a typical white good is kept in a cossetted environment, whereas automotive air-conditioning units are subject to extremes of temperature and vibration. A refrigerator’s soldered joints would fracture were they used in a car, which explains the use of flexible pipes and rubber seals in the automotive application, through which the pressurised gas escapes over time. How air-conditioning operates While air-conditioning seems to be a standalone element, it actually works in conjunction with a car’s heater, which explains why some aircon components are housed within the heater box. The whole unit tends to be described as the heating, ventilation and…

2 Min.
diy repairs

Due to the detrimental effects refrigerant has on the environment, it is illegal to handle it without the necessary certification. You also risk serious injury if you come into contact with the escaping gas. You should leave anything to do with the refrigerant to a qualified professional, who will be able to evacuate the system and dispose of the gas in an environmentally-safe manner. If your aircon is not working, because the condenser or pipework, has been punctured and all gas has escaped, you may consider changing these components yourself, prior to visiting a specialist for regassing. As it is illegal for an air-conditioning engineer to recharge a system that is known to be leaking, it will be vacuum- or pressure-tested first using inert nitrogen gas. Only if the system does…

1 Min.
talking gas

Several different refrigerants are used in automotive air-conditioning and it is critical that the correct one is used in your car by your specialist. Newer types are less environmentally damaging. The first gas, R12, which was used on cars up to 1993, had a global warming potential that was 8000 times higher than carbon dioxide and took around 100 years to degrade. R12 was banned for air-conditioning servicing in the UK from 2001. Its replacement, R134a, was far superior from an environmental standpoint, being only 1300 times more damaging than CO2 from a global warming perspective and could degrade in 13 years. Nonetheless, car manufacturers are no longer permitted to use R134a and its replacement, R1234yf, requires only 13 days to dissipate and is only four times as harmful as…

1 Min.
air-conditioning and the law

EC Regulation 842/2006 This stipulates that anyone involved in the handling of refrigerants during the servicing, repair, or dismantling, of vehicle air-conditioning systems must be qualified. Legally, such systems must not be worked on by a DIY mechanic and this remains our recommendation. A garage can buy refrigerants only if it employs qualified staff. Directive 2006/40/EC (Mobile Air Conditioning (MAC) Directive) This seeks to phase out greenhouse gases that are more than 150 times as harmful as CO2. This includes R134a, although no fixed date has been set.…