Brakes are good bread and butter money earners for garages. Good markup on the parts and often fitted in far less than the book time, and I’m sure the techs will be on some kind of bonus too
Not saying that you should ignore remarks made about brakes but if you’re unsure it’s worth checking.
My GL63 was advised for brakes at the last service, it’s due again in a few weeks and they’re still okay although the front will need doing soon (I have the parts already). Unfortunately upon collection they had decided to put four advisories (one for each corner) on the MOT pass that they were wearing low
The rear pads on my car are only 9.5mm thick when new, I noticed this when I replaced them last time as the old ones that had been advised in the past were only about 1/3 worn. If I’d opted to replace these a year ago it would have been a waste IMHO. The rears are still fine today.
By comparison, someone I know was buying a used car recently at a main dealer. The car was retail stock. A few years old but low mileage/full history/to be sold with new MOT and and not cheap. Deposit paid and car was brought to the local branch for payment and collection etc (it was group stock from another dealer in their network). The MOT was carried out, it originally failed and there were a number of advisories. They literally did the bare minimum to get it to pass and left the rest.
Monitor and repair if necessary (advisories):
- Nearside Front Shock absorbers has light misting of oil (5.3.2 (b))
- Rear Heat shield loose
- Nearside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))
- Offside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))
- Central Front Inner Brake disc worn, but not excessively (1.1.14 (a) (i))
What are advisories?
Date tested
3 March 2023
FAIL
Mileage
44,924 miles
Repair immediately (major defects):
- Rear Brakes imbalanced across an axle Axle 2 (1.2.1 (b) (i))
Monitor and repair if necessary (advisories):
- Nearside Front Shock absorbers has light misting of oil (5.3.2 (b))
- Rear Heat shield loose
- Nearside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))
- Offside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))
- Central Front Inner Brake disc worn, but not excessively (1.1.14 (a) (i))
I never drove the car but apparently the brakes were poor and noisy etc. Upon raising this (and only later discovering the MOT advisories), the dealer’s attitude was that is was fine as it had ‘met the government standard’. You can bet that if it had been a customer’s car in for service that they would have strongly advised that they were replaced
The car developed an overheating fault on the same day of purchase and was promptly rejected due to a number of other issues anyway (including poor previous accident repairs).
@SIS, In a nutshell - £5k for brakes sounds steep. As this sort of money you want to be sure that they really need doing and you maximise your use out of them. Doing them say when they’re only half worn would be a waste of £2.5k in your example.