Compare BMW 4 Series car alarm repair quotes from specialist garages

Looming hundreds of feet up in Munich's skyline is BMW's headquarters, a vast and impressive building designed to look like four engine cylinders - the configuration that drove much of the brand's early success.

BMW has come a long way since 1927, when it produced its first car, the Dixi, shortly to be renamed the BMW 3/15. In 2022, it was awarded 'Best Manufacturer' at the AutoCar Britain's Best Car Awards, and the same year, it triumphed at the WhatCar? Awards, winning more accolades than any other brand. The M5 special edition, celebrating 20 years of BMW motorsport, is one of the rarest M automobiles in the world.

See how BMW's maintenance prices compare to Audi and Mercedes in this guide.

Car alarms use sensors around the vehicle to detect unusual vibrations, which could indicate someone is breaking in. When movement is detected, a high-pitched alarm is triggered. Most vehicles come with a factory-fitted alarm system, but car alarm fitters can install other aftermarket systems for extra peace of mind.

If your car alarm keeps sounding without any apparent cause, not only is it frustrating, but it also means something is broken, so booking a car alarm repair is a matter of urgency. Several things could be causing the problem, such as faulty sensors, wiring issues, a broken key fob or a low battery.

A car alarm fault repair is usually quick and easy; the most challenging part is working out what needs fixing. Even if there isn't an apparent problem, some drivers book a car alarm system check every few years to ensure their car is still secure.