Telephone 01273 698010

1st Class Garage,
25 Montague Place,



AA Inspected and Certified Garage


Retail Motor Industry Federation


Credit Cards Welcome at 1st Class Garage


Auto Electrics

Your car's electrical systems

Electrical systems in cars today are a lot more complicated than they used to be. The mechanics at 1st Class Garage have to work on your car's computer systems as well as the standard mechanisms. More functions of your car are run by computer than ever before, and as a result there are many more circuits and connections in modern cars. At 1st Class Garage we make it our business to understand how modern computerised systems work so that we can offer the best quality of repair to your car's electrics.

Modern electrical systems in cars are built with quite high resistances, and this can affect the performance of some electrical devices. A car has various 'wiring looms', designed specifically for that model, which run to multi-plugs. A multi-plug can have anything from one or two wires to sixty or seventy wires connected to it. Because they are the connector for the system, and therefore have to be accessible, multi-plugs are prone to corrosion.

In the past, cars did not have as many electrical systems, and they were not as complicated. For example, modern cars have 'climate control' systems which operate through temperature sensors placed around the car. Naturally, these have a more complex set-up than older air conditioning units, which were simply operated by two or three manual switches. Older electrical units in cars could easily run off 12 volt systems with quite robust wiring. Because modern cars contain a lot more electrics, manufacturers have needed to use much finer wiring to save space. But because these wires are thinner they are also easier to break, and must be run at lower voltages.

The 1st Class Garage workshop is equipped with the latest diagnostic equipment to access the on-board computers found in most modern vehicles.