Mercedes ML and GLE 7G-Tronic Plus and 9G-Tronic gearbox service — Milton Keynes
The 2012–2019 ML and GLE (W166) is described with a 7G-Tronic Plus seven-speed, and the W167 GLE (2018 on) has the nine-speed 9G-Tronic. We confirm yours from the VIN, then service it with the right fluid at the right temperature.
Static service from £399, dynamic fluid exchange from £799, priced to your car. Get a price first — send the registration and we confirm the gearbox.
Which Mercedes ML and GLE cars have the Mercedes 7G/9G-Tronic
- ML and GLE (W166)2012–2019
- ML 250 and 350 diesels, ML 350 and GLE 400 petrols, V8s and the GLE 500e plug-in. 7G-Tronic Plus (722.9); the article's infobox also lists the 9G-Tronic (725.0).[1]
Gearbox versions are as published by the car maker, ZF and the sources below. We confirm your car's exact gearbox from its VIN before ordering parts.
What to know about the 7G-Tronic and 9G-Tronic in a Mercedes ML and GLE
- The Wikipedia article says the 2012 M-Class had an updated 7G-Tronic Plus seven-speed automatic. It does not say which engines or years of the W166 later got the 9G-Tronic, so we confirm yours from the VIN rather than the year.[1]
- The W167 GLE is listed with the 9G-Tronic only. The AMG versions can use different gearboxes.[1, 2]
What the service includes
Static service, from £399:
- Road test with live data before we start and again before handover
- Pan off and filter renewed where the design allows, with a new seal and bolts where specified
- The fluid specified for your gearbox, by part number — the 7G-Tronic and 9G-Tronic take different fluids
- Level set by the method the gearbox calls for, with the fluid at the specified temperature read from live data
- Adaptations reset, leak check, and the work recorded against your car
Dynamic fluid exchange, from £799: everything above, plus our machine connected into the cooler circuit to renew the fluid in the torque converter and cooler circuit, not just what drains from the pan. Dynamic exchange prices and booking · How the dynamic exchange works →
Each step is explained on our Mercedes 7G-Tronic (722.9) and 9G-Tronic (725.0) gearbox service page.
The Rootes Standard
What you get on every job
Not extras, and not only on the big jobs. This is how every car is looked after at Rootes Motors, from an oil service to a gearbox.
Fixed price in writing before we start
You get a fixed price in writing before any work begins. If we find anything else, we send you photos and a link to approve or decline it — nothing extra is done without your yes.
12-month warranty on parts we supply
12-month warranty on parts we supply (wear items and consumables excluded), and every job is road-tested and checked before handover.
Covers on, clean overalls, every car
A seat cover, steering-wheel cover and floor mat go into every car before we touch it, and we work in clean overalls — never in a customer's car in dirty clothes.
A warm, dry waiting room with coffee
On a while-you-wait job you sit in a warm, dry waiting room with a coffee — not stood outside in the cold and rain.
Paperless, with every job on record
Booking is paperless. Every job is recorded against your car, and we email you the documents confirming the work completed.
Automatic service and MOT reminders
Every registered customer gets automatic service and MOT reminders by email, so a due date never slips past.
MOT arranged on our street
We arrange your MOT at the DVSA-approved test centre on our street, take the car there and back, and fix anything that fails.
Questions we get asked
Does my ML or GLE have the 7G-Tronic or the 9G-Tronic?
The 2012-on W166 is described with the seven-speed 7G-Tronic Plus, with the nine-speed 9G-Tronic also listed; the 2018-on W167 GLE has the 9G-Tronic. Send us your registration and we confirm it before quoting.
How often should the gearbox be serviced on an ML or GLE?
Our own advice is around every 60,000 miles on average, sooner if you tow, which many owners of these cars do.
Do you service the ML 63 or GLE 63 AMG gearbox?
Call us with your registration. AMG models can use a different gearbox from the standard 7G-Tronic or 9G-Tronic, and we tell you what yours has before we quote.
How much is a Mercedes 7G/9G-Tronic gearbox service on a Mercedes ML and GLE?
A static service (drain and fill, level set at the correct fluid temperature) is from £399, and a dynamic fluid exchange on our machine is from £799, both priced to your car. The price moves with which Mercedes 7G/9G-Tronic version it has, the pan and filter part and how much has to come off to reach it. Give us your registration and we confirm a fixed price in writing before we start.
Where these facts come from
- 1.Wikipedia, “Mercedes-Benz GLE-Class” (read 30 Oct 2026)W166 (2012–2019): updated 7G-Tronic Plus seven-speed on the 2012 M-Class, with a 9G-Tronic also listed in the infobox without years or engines; W167 (2018 on): 9-speed 9G-Tronic only
- 2.Wikipedia, “Mercedes-Benz 9G-Tronic transmission” — variants and applications (read 30 Oct 2026)Which Mercedes models and years are listed with the 9G-Tronic (type 725.0)
Other work we do on the same car
Diagnostics & electrics
Dealer-level diagnostics, and a written estimate before any work.
from £79See the service
Servicing
To the manufacturer schedule, service book stamped.
from £169See the service
Repairs
Brakes, clutches, suspension, cooling, cambelts, head gaskets and turbos.
from £120See the serviceFurther reading
- Gearbox · from £399Mercedes 7G-Tronic (722.9) and 9G-Tronic (725.0) gearbox service
- Service · from £799Dynamic gearbox fluid exchange
- GuideHow the dynamic transmission fluid exchange works
- SpecialistMercedes-Benz
- Mercedes 7G/9G-TronicMercedes C-Class
- Mercedes 7G/9G-TronicMercedes E-Class
- Mercedes 7G/9G-TronicMercedes GLC
- Mercedes 7G/9G-TronicMercedes Sprinter, Vito and V-Class
Other cars with the Mercedes 7G/9G-Tronic
The same service, written up for other models we see.