1992 Turbo R - mineral oil warning on acceleration

[LeonardinLA]

By way of introduction, I've owned my 1992 Bentley Turbo R for just over 5 years. Bought it with 73000 miles and am up to 95000. It's my daily driver for my daily 10 mile commute. As many of the people here would attest - your mood instantly improves once you get behind the wheel.

After I bought the car I spent about $13000 getting it in a tip top shape. The next two years were very easy - under $1000 in repairs per year. The last year I spent about $8000. Altogether the repairs come to about $25000 over the last 5 years.

Now - to the problem at hand. For the last 6 months or so the mineral oil warning light comes on after I accelerate and almost immediately disappears. The break pads are in good shape and the mineral oil doesn't leak; the levels are fine.

Any ideas? My repair shop - not a bentley specialist - can't figure it out.

Any advice would be highly appreciated!

[graemel]

Perhaps a sligthly daft question. But is the mineral oil filled to the very top of the two little site glasses on top of the reservoir. If not this could be your problem.

[LeonardinLA]

Yes - I've checked... Followed the instructions in the manual.

[MULLINER]

This is quite common the reservoirs are not topped up fully and you are getting sloshing, hence this is only happening under hard acceleration it may under hard braking too check both are full and it should resolve the problem for you.

[LeonardinLA]

Went back and re-checked! One reservoir was indeed low. Thanks to everyone for the help!!!

[graemel]

Glad to read your problem is solved

[Byteme]

These cars consume hydraulic oil as they are designed to leak, regular checking is therefore a mandatory requirement.

[crugster]

Hi all. Just a quick question on the subject of the LHM reservoirs.
I’ve been thinking of buying a Turbo R which has great service history up to 10 years ago but very little since. Seems like it has been pretty much laid up for the last 6 years. . One reservoir is low level and the light is on the dash.
The brakes work but not properly- they seem to snatch on (the abs isn’t working either!). The suspension seems fine with a bounce on the rear - not hard.
Am I right in thinking that one is for the brakes and the other fir the suspension?
Assuming the reservoir and float is working and I top up the fluid could that improve the brakes? If I do buy (save) this old girl I’ll be flushing the whole system out anyway, but is the low fluid likely to cause that brake problem or is it going to be something more fundamental - abs pump perhaps? Thanks