Flush and fill...

Aftermarket's independent test bench tries out a Wynn's transmission flush unit. Check out the results here

Published:  11 February, 2014

Tool: TranServe flush and fill unit from Wynn's

Tester: Barnaby Donohew of T J Lobb

Price: £2,995 +VAT

Firstly, the negative. The unit did not have adapters available, either as part of the original package or as an option, to fit the chosen test vehicles - a Jaguar S-Type and an E46 BMW. All of the test vehicles' transmission units would have been fitted to other models produced by the respective manufacturers so they were not uncommon, in fact they are probably the types of transmissions the unit should be targeting. A scan through the documentation seemed to suggest that many of the original adapters were intended for the American market.

After tracking down suitable connectors and making adaptions as necessary, it was fairly straightforward to connect the TranServe unit into the transmission cooling lines. It is anticipated that if the vehicle provides easy access to its transmission cooling system and its connections match the adapters supplied with the unit, then carrying out a transmission service would be very simple.

A typical service procedure begins with running the engine and transmission to allow them to reach their normal operating temperatures. A treatment is then added to the transmission fluid (Wynn's Automatic Transmission Flush, naturally), you leave the engine to idle for ten minutes then flick a switch on the connected TranServe machine to carry out a replacement of the transmission fluid. The machine signals the end of the procedure via one of the indicator lights. All of these steps are illustrated in the documentation supplied with the unit.

Want to know more?

"We constantly monitor market changes and fittings for the TranServe machine, there is currently a project underway at our European Head Office in Belgium to update the kit currently supplied with the machine.

The TranServe fitting kit is exclusively developed for the European market. The optional fittings we supplied to Barney are predominantly for the US market.

We are aware that machine is not right for everyone, in particular smaller workshops who see a wide selection of vehicles.  However, for workshops that specialise ( BMW, Volvo, Mercedes, Landrover, etc.) and, of course, London Taxi workshops it's perfect.

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