The fluid ZF lists for that gearbox. The six-speed and the eight-speed each have their own fluid, so we confirm which gearbox your car has before we start.

Do you change the filter as well as the oil?

Yes. On gearboxes with a plastic sump, ZF builds the filter into the sump, so the two are changed together.

Why does the temperature matter when setting the level?

ZF specifies that the level is set with the oil between 30 and 50 °C. We read the oil temperature with our diagnostic equipment and set the level within that range.

Will an oil change cure a gearbox fault?

An oil change is maintenance at the right interval. It does not repair a fault, so if the gearbox is already showing a problem we test it first and tell you what we find.

BMW gearbox oil service

ZF automatic gearbox oil service for BMW

ZF says its six- and eight-speed automatic gearboxes are filled maintenance-free, but recommends an oil change after 150,000 km, about 93,000 miles, and sooner with high temperatures, heavy loads or an unknown history. We carry out the oil and filter change in-house and set the oil level with the oil between 30 and 50 °C, as ZF specifies.

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Last updated 12 November 2026

Which gearboxes does this service cover?

This page covers the oil and filter change for ZF six-speed and eight-speed automatic gearboxes. If you are not sure which gearbox your BMW or MINI has, put the registration in the enquiry form and we will check.

For other BMW and MINI work, see our BMW and MINI specialist page.

Does the gearbox oil really need changing?

ZF says its six- and eight-speed automatics are filled maintenance-free. It still recommends an oil change after 150,000 km, about 93,000 miles.

ZF advises changing it sooner if:

the gearbox works with high temperatures
the gearbox works under heavy loads
the car’s history is unknown

Send us the registration and mileage and we will tell you whether the oil change is due.

Which oil goes in?

ZF lists a specific fluid for each gearbox. The six-speed takes one fluid and the eight-speed another, so we confirm which gearbox your car has and use the fluid ZF lists for it.

What does the service involve?

We:

drain the old oil
change the filter. Where the gearbox has a plastic sump, ZF builds the filter into the sump, so the two are changed together
refill with the fluid ZF lists for the gearbox
set the oil level with the oil between 30 and 50 °C, as ZF specifies, reading the temperature with our diagnostic equipment

After the service we check for leaks and road test the car where appropriate.

Why does the oil temperature matter?

ZF specifies that the level is set with the oil between 30 and 50 °C, with the temperature read by diagnostic equipment. So we read the oil temperature from the gearbox and set the level only within that range.

What if the gearbox already has a fault?

An oil change is maintenance at the right interval. It does not repair a fault the tests have found.

If the gearbox is showing a problem, we read the gearbox fault memory and road test the car before any work, then explain in writing what we found. Our transmission condition check covers this.

No work goes ahead until you give us your written approval.

Is the transfer box oil part of this service?

No. On xDrive cars the transfer box has its own oil. See our BMW xDrive transfer box page.

How long does it take?

It depends on the gearbox and the car. You get a written price and a promised time for your next update before we start. If the car needs to stay with us, ask about a courtesy car when you book.

Reverie Autocare is an independent specialist and is not affiliated with or endorsed by BMW or MINI.

Our promise on every job

Written approval before any extra work
Photographic proof of what we find
A promised update time
No surprise invoice
A test drive and verification where appropriate

Our service centre

Where will my car be looked after?

At our centre at 57 Great North Road, Welwyn Garden City, built so that waiting for your car is not wasted time.

Seven ramps and an on-site MOT bay
Three customer waiting areas
A co-working space with Wi-Fi
A multi-faith prayer room and quiet room
Lavazza coffee
Customer parking

Questions people ask us

Does a BMW automatic gearbox need an oil change?: ZF fills its six- and eight-speed automatics as maintenance-free, but recommends an oil change after 150,000 km, about 93,000 miles, and sooner after high temperatures and heavy loads or if the car's history is unknown.
Which oil goes in?: The fluid ZF lists for that gearbox. The six-speed and the eight-speed each have their own fluid, so we confirm which gearbox your car has before we start.
Do you change the filter as well as the oil?: Yes. On gearboxes with a plastic sump, ZF builds the filter into the sump, so the two are changed together.
Why does the temperature matter when setting the level?: ZF specifies that the level is set with the oil between 30 and 50 °C. We read the oil temperature with our diagnostic equipment and set the level within that range.
Will an oil change cure a gearbox fault?: An oil change is maintenance at the right interval. It does not repair a fault, so if the gearbox is already showing a problem we test it first and tell you what we find.