What the climb to Old Coulsdon does to a BMW
Coulsdon sits on the North Downs, and the drive up to Old Coulsdon and Coulsdon Common is a proper climb. For a BMW that means brakes working hard on every descent, tyres scrubbing on tight junctions and, on four-wheel-drive xDrive models, a drivetrain that is sensitive to uneven tyre wear. Family SUVs and estates are common around the Downs, and our inspections take that kind of use into account.
Brakes come first. Repeated descents heat the discs, and uneven heating shows up as vibration through the pedal or steering. We measure disc thickness and check for lip and scoring, not just pad depth, and we test the fluid, which absorbs moisture over time and copes less well with heat as it does. On xDrive cars we check that tyres on both axles are a matched brand, size and wear level, because mixing them makes the transfer box compensate for different rolling speeds. Knowing how much pad and disc life is left lets you plan the job rather than react to a warning light.
The A23 is the other part of Coulsdon driving. Queues at the Farthing Way junction with Lion Green Road give the brakes more work, then the run south towards the M25 gives the engine the steady miles it likes. A car that does a bit of both often suits BMW's standard CBS intervals well, whereas one that only climbs back and forth from the shops may benefit from an extra oil change. We look at the car's history and your driving before recommending either.
The route is easy: Smitham Downs Road to the A237, then follow it north through Woodcote and Wallington to Hackbridge. It takes around 17 minutes. If brakes or tyres are bad enough that you would rather not drive, collection can be arranged. Everything beyond the agreed service is quoted in writing, and our repairs carry a 3-month workmanship warranty.