Inspec 2 @ £429
Look at what they check, a few things missing, which is why no doubt they say it's a mistake.
Check lighting system.
Check instrument and indication field lighting, check heater blower.
Check Horn, headlight flasher and hazard warning lights.
Seat belts: check condition of belt strap, function of inertia reel mechanism, locking reel, and belt buckle.
Check battery: acid level, charge state
Heating / air conditioning microfilter(s) is replaced
Body checked for corrosion.
Diagnosis brief test.
Replace engine oil and oil filter.
Check coolant level.
Check windscreen washer and intensive cleaning systems: fluid levels.
Check Steering fluid reservoir: fluid level.
Replace spark plugs (if petrol).
Intake silencer: replace air filter element.
Check brake pad thickness
Check brake disc surfaces and thickness.
Check steering components: check for clearance, leaks, damage and wear.
Check under-body including all visible parts: check for damage, leaks and corrosion.
Check brake lines and connections: visually inspect for leaks, damage and correct position.
Check handbrake function.
Check tyres for inflation pressures, external condition, tread depth and tread pattern.
Replace main fuel filter (if diesel).
Exterior is washed
Interior is vacuumed
BMW Service history is updated