← Back to Automatic Gearbox Service

Standard Gearbox Oil Change vs Dynamic Gearbox Service

Feature Standard Oil Change Dynamic Gearbox Service
Partial oil replacement Yes Not the main aim
High oil exchange volume No Yes
Dynamic flushing / exchange No Yes
Temperature-controlled filling Optional Yes
Diagnostic check Optional Yes
Adaptation check Optional Yes
Filter / sump replacement Optional Where applicable

Why Gearbox Service Prices Vary

Many gearbox service kits only include around 7 litres of oil. This is usually enough for a standard drain and refill procedure only.

During a dynamic gearbox exchange, additional oil is often required because old oil remains trapped throughout the torque converter, oil cooler, transmission circuits and valve body.

Transmission Standard Service Dynamic Exchange
BMW ZF 6HP Approx. 7L Approx. 10–11L
BMW ZF 8HP Approx. 7L Approx. 11–13L
Mercedes 9G-Tronic Varies Higher oil quantity required
Audi DSG / S-Tronic Varies Higher oil quantity may be required
A lower advertised price does not always mean the same level of gearbox servicing is being carried out.

What Is Included In Our Dynamic Gearbox Service?

Dynamic Gearbox Service Procedure

From £299 incl VAT

Transmission oil, filters and gearbox-specific parts are charged separately depending on vehicle specification.

Included Procedure

  • Gear Tronic dynamic exchange procedure
  • Liqui Moly transmission cleaner
  • Diagnostic scan
  • Adaptation check
  • Temperature-controlled filling procedure
  • Road test

Charged Separately

  • Transmission oil used
  • Filter kits
  • Sump / pan kits where applicable
  • Vehicle-specific transmission parts
  • Additional labour if required

Gearbox Types We Service

BMW / ZF

  • BMW ZF 6HP transmissions
  • BMW ZF 8HP transmissions
  • Dynamic ZF gearbox oil exchange

Mercedes-Benz

  • Mercedes 7G-Tronic transmissions
  • Mercedes 9G-Tronic transmissions
  • Mercedes dual-clutch transmissions

Audi / VW Group

  • Audi DSG gearboxes
  • Audi S-Tronic transmissions
  • Audi Quattro systems

VW / Haldex

  • VW DSG gearboxes
  • Haldex service
  • Transfer box oil service

Areas We Cover

AG Auto-Tech Tadley provides gearbox servicing across Hampshire and Berkshire.

Tadley Basingstoke Reading Newbury Farnborough Hampshire Berkshire

Need Gearbox Service Pricing For Your Vehicle?

Contact AG Auto-Tech Tadley with your registration number and gearbox type for vehicle-specific advice.

Call 07920 778706

Gearbox Service Process

We use professional Liqui Moly Gear Tronic equipment to perform a dynamic automatic gearbox oil exchange. The process allows us to replace a greater amount of contaminated transmission fluid compared to a basic drain and refill.

Liqui Moly Gear Tronic gearbox service machine
Equipment Liqui Moly Gear Tronic

Professional automatic gearbox service machine used during the dynamic oil exchange process.

Gearbox service hose connection
Connection Dynamic Hose Connection

The service machine is connected directly into the gearbox oil circuit during the exchange procedure.

Before & After Oil Condition

A visual comparison helps explain why dynamic gearbox servicing costs more than a simple drain and refill. The aim is to replace a greater amount of old contaminated fluid from inside the transmission system.

Used gearbox oil visible through service machine line
Before Old Contaminated Fluid

Darker used transmission fluid visible through the service machine line during the exchange process.

Used automatic gearbox oil removed from vehicle
Before Used Gearbox Oil

Dark, contaminated oil removed from the gearbox system.

Cleaner oil after gearbox service
After Cleaner Fresh Fluid

Fresh transmission fluid visible after the dynamic exchange process.