Automatic Gearbox Servicing in Sunbury-on-Thames
Many automatic gearboxes were described as ‘sealed for life’, but fluid still ages. Degraded fluid can affect shift quality and component wear over time.
We service modern automatic gearboxes, including BMW transmissions, with the correct fluid and level-setting procedure.
Common signs
Symptoms worth checking
- Harsher or delayed shifts
- Flare between gears
- Shudder at low speed
- High mileage without a fluid service
Fluid change versus flush
A fluid change drains and refills, usually with a new filter or sump pan. A flush exchanges a greater proportion of old fluid. Which is appropriate depends on the gearbox and its condition.
Correct level-setting at the specified temperature is critical and often needs diagnostic equipment.
What we check
- Fluid condition
- Leaks
- Adaptation and fault data
- Shift quality on road test
What we can do
- Fluid and filter service
- Gearbox flush where appropriate
- Adaptation reset where required
How it works
The process
- 01
Road test and scan.
- 02
Advise change or flush.
- 03
Service and set level.
- 04
Road test.
Why The Factory
Main-dealer capability, independent service
A Master Technician-led workshop with seven mechanical ramps, a dedicated MOT ramp and dealer-level diagnostics. Faults are shown to you and additional work is quoted before it goes ahead.
We stand behind the work we carry out. Parts and workmanship are covered in accordance with your statutory rights and any applicable manufacturer or supplier warranty. Please ask us for details relevant to your repair.
- Diagnostic equipment for level and adaptations
- BMW ZF transmission experience
Free local collection & return
Available by arrangement within approximately five miles of our Sunbury-on-Thames workshop. Further afield? Just ask us.
FAQs
Automatic Gearbox Servicing: your questions answered
Does an automatic gearbox need servicing?
Many benefit from fluid servicing even if the manufacturer doesn’t specify a short interval. We’ll advise for your gearbox.
What are signs that gearbox fluid may need attention?
Harsher, delayed or flaring shifts, shudder, or high mileage without a service.
What is the difference between a gearbox fluid change and a flush?
A change drains and refills; a flush exchanges more of the old fluid.
Can old gearbox fluid affect shift quality?
Yes. Degraded fluid can affect friction and hydraulic control.
Do you service modern automatic gearboxes including BMW transmissions?
Yes.
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Need help with automatic gearbox servicing?
Send your registration and a quick description on WhatsApp, or call the workshop.
The Factory, Harris Way, Sunbury-on-Thames TW16 7EL