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MG Car Repair/headlight switch


hi Barrie, is there anyway to repair a headlight switch ? I was getting out of my car and hit it with my knee, it fell apart. Would you know how to reassemble it. It's a 1978 mgb roadster, rubber bumper made for English market. The switch is located at the side of the steering column.        Many thank's Martin.

Hi Martin.  This is not an easy question to answer because it is difficult to describe what you have to do to assemble it.  

It can be done, so long as none of the plastic lugs that hold it together have snapped off.  Also, it is essential that you have found all the bits.  There is a metal slider, a spring and a nylon button that sits inside one end of the spring.  The other end of the spring goes up inside the operating knob.   

It is a 3 position switch (off, sidelamps, headlamps) but you can assemble it upside down so if you put it back together and it doesn't function correctly, try taking it apart and rebuilding it the other way up.  

This is a standard switch used on many vehicles made by British Leyland in the 1970s and 1980s so you may find one on a Mini or an Ital in a scrapyard.

New switches are readily available from Moss Motors in the UK, price 11.95, part number AAU4562.  

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Barrie Jones


MG Sports Cars from 1949 to 1980 - Including MGB, MGBGT V8, TF1500, TF, TD and modern Midgets. I also specialise in SU carburettors, Lucas wiring, suspension, steering & brakes.


I have owned my 1955 TF1500 since 1966. Technical specialist for the TD and TF with the MG Car Club T Register. Also owned 20 MGBs and currently own an MGBGT V8. Written 3 books on MGs and produced a DVD on how to strip and rebuild the TD/TF gearbox.

MG Car Club.

Barrie's Notes on the 1953-55 MG TF (author). /=====/ Barrie's Notes on the MGB (author). /=====/ Barrie's Notes on the MGB GT V8 (author). /=====/ The Essential Buyer's Guide to the MG TD, TF and TF1500. (author)

M Phil, C Eng, BSc (Eng).

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