I'm in a similar situation to simon12 as my 2001 GS430's brake booster assy failed with the usual lights, buzzer etc. I was gutted as I read before I bought the car 6 months ago that the series 2 have an uprated unit which fixed the original problems. Wrong.
My local Toyota/Lexus independent have tried replacing the pressure switch(es), the pump, the reservoir and finally sent it to BBA-Reman who replaced stuff for under 300 quid, which was great although could only test 95% of it on the bench. Unfortunately the problem remains (they've refunded in full)
I've had zero luck on eBay or breakers, so I suppose I'll have to get the complete unit from lexus at a cost of about 2100 +VAT. <gulp>
Can anyone confirm the following? :
47210L is the Brake Booster Assy, W/Master Cylinder; which comprises
47201 Cylinder Sub-Assy Brake Master; and
47070B Pump Assy w/Accumulator
I think from info on the 'net that part 47025-300230 Cylinder Sub-Assy Brake Master which isn't shown on my exploded view is the actual part I need (the master cylinder) which is 600 quid cheaper as it doesn't have the reservoir or pressure switch -- Can anybody confirm/
'guv