Rootes MotorsServicing & repairs

Jaguar XF, XJ and XK ZF 6HP gearbox service — Milton Keynes

The first Jaguar XF, the XJ from 2003 and the XK X150 all use the ZF six-speed — the 6HP26, then the 6HP28 on the later 3.0 diesels and 5.0 V8s. We renew the pan and filter, exchange the fluid, check the connector sleeve and reset the adaptations.

From £390, priced to your car. Get a price first — send the registration and we confirm the gearbox.

Which Jaguar XF, XJ and XK cars have the ZF 6HP

XF (X250)2008–2012
Every engine at launch; later 3.0 diesel and 5.0 supercharged. 6HP26; 6HP28 on the 3.0 diesel and 5.0 supercharged (2010–2012 model years).[1, 2]
XJ (X350, X358)2003–2009
Every engine — V6, V8 and diesel. 6HP26.[2, 3, 4]
XJ (X351)2010–2012
Early X351 automatics. 6HP28.[2]
XK (X150)2006–2014
4.2 V8 and 5.0 V8. 6HP26 on the 4.2; 6HP28 on the 5.0.[4, 5]

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 6HP in a Jaguar XF, XJ and XK

  • During 2012–2013 Jaguar replaced the six-speed with the eight-speed ZF 8HP70 on every XF engine. A late XF is an 8HP job — see our ZF 8HP Jaguar page.[1]
  • On the XK, the 4.2 has the 6HP26 with the J-gate lever and the 5.0 has the 6HP28 with the rotary selector — different gearboxes, different parts.[5]
  • ZF calls its automatics maintenance-free in normal use, but recommends an oil and filter change after 50,000 to 75,000 miles because the oil wears — and it ages faster with towing, high speeds or hard driving. Most of these cars are older than that on their first fill.[4, 6]

What the service includes

  • Road test with live data before we start and again before handover
  • New sump pan and filter (together where the filter is built into the pan), ordered by your car's VIN
  • The fluid specified for your gearbox, by part number
  • Check of the connector sleeve where the wiring enters the gearbox — the common 6HP leak — quoted before any repair
  • Dynamic fluid exchange — torque converter and cooler, not just the pan
  • Level set at the temperature the gearbox calls for, adaptations reset, leak check, and the work recorded against your car

Each step is explained on our ZF 6HP gearbox service page.

ZF 6HP or ZF 8HP? The eight-speed ZF 8HP replaced it in later cars — for the Jaguar models with the 8HP, see Jaguar XE, XF and F-Pace. We confirm which one your car has from its VIN.

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.

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. Automatic service and MOT reminders

    Every registered customer gets automatic service and MOT reminders by email, so a due date never slips past.

  7. 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 Jaguar XF have the 6HP or the 8HP?

XFs from 2008 to 2012 have the ZF six-speed. During 2012–2013 every engine moved to the eight-speed 8HP70. Send us your registration and we confirm it before quoting.

My XF changes gear roughly when it is cold. Will a fluid service help?

It often helps, together with an adaptation reset. If the mechatronic unit or the torque converter is worn, fluid will not fix it, so we road-test with live data first and tell you which it is.

Do you service the XJ and XK as well as the XF?

Yes. They share the ZF six-speed family, so the service is the same process. The pan, filter and fluid are confirmed by part number for your car.

How much is a ZF 6HP gearbox service on a Jaguar XF, XJ and XK?

From £390, priced to your car. The price moves with which 6HP 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. 1.Wikipedia, “Jaguar XF (X250)” (read 21 Oct 2026)All XF models initially used the ZF 6HP26; for 2010–2012 the 3.0 diesel and 5.0 supercharged used the 6HP28; during 2012–2013 the 8HP70 replaced the six-speed for all engines
  2. 2.Wikipedia, “ZF 6HP transmission” — variants and applications table (read 21 Oct 2026)Which 6HP variant is listed for each model and year (cross-checked against ZF's kit sheet and the model articles on this page)
  3. 3.Wikipedia, “Jaguar XJ (X350)” (read 21 Oct 2026)X350/X358: six-speed ZF 6HP26 automatic; all engines paired with a ZF six-speed
  4. 4.ZF Aftermarket, service information 50145 “Oil change kit for ZF 5HP/6HP automatic transmission” (03.2023)ZF's own kit table: BMW on the 6HP19, 21, 26, 28 and 32 families, Jaguar on the 6HP26 and 6HP28, Land Rover on the 6HP26 X and 6HP28 X; ZF's note that the oil ages faster with high speeds, towing and sporty driving; and its separate service information on the 6HP mechatronic guide sleeve
  5. 5.Wikipedia, “Jaguar XK (X150)” (read 21 Oct 2026)4.2 models: ZF 6HP26 with the J-gate; 5.0 models: ZF 6HP28 with the JaguarDrive rotary selector
  6. 6.Professional Motor Mechanic, “Can ‘lifetime fill’ automatic transmissions benefit from oil/filter replacement?” (2014)ZF recommends oil and filter changes after 50,000 to 75,000 miles on its five-, six- and eight-speed gearboxes; worn oil shows as judder, noises and worse gear changes