Reliability Guide

Common Problems with the
2005 Jaguar S-Type

We've identified 4 known issues that can affect the 2005 Jaguar S-Type. 1 of these are serious faults that could be expensive to repair.

4
Known Issues
1
Serious
2
Moderate
1
Minor

All Known Issues

Sill & Rear Subframe Mounting Corrosion Concealed Behind Plastic Covers

SeriousBodywork & Rust

Road dirt and wet road salt accumulate behind the full-length plastic sill threshold covers and around the rear subframe front mounting heel boards, corroding structural steel out of plain sight.

Est. Repair Cost: £400–£1,200
Warning Signs:

Crumbly rust flaking from rear sill jacking points, MOT failure advisory for corrosion within 30cm of suspension mountings, Soft or spongy metal beneath underseal around rear wheel arches

What to Inspect:
  • Probe the underside of the outer sills and jacking points with a firm flashlight and pry tool
  • Look for previous weld repairs or MOT structural corrosion advisories
Verified by IsItAGoodCar Research TeamUpdated

ZF 6HP26 Automatic Gearbox "The Lurch" & Mechatronic Sleeve Leak

ModerateGearbox & Transmission

The 6-speed ZF automatic gearbox suffers from fluid leakage around the plastic mechatronic electrical sleeve and worn valve body damper rubbers, causing harsh downshifts from 2nd to 1st gear when coming to a halt.

Est. Repair Cost: £250–£800
Warning Signs:

Harsh thump or "lurch" when coming to a complete stop, Delayed engagement of Reverse gear from Park, Transmission fluid weeping around gearbox electrical connector

What to Inspect:
  • Drive the car until fully warmed up and perform multiple low-speed stops
  • Check if the Mechatronic sealing sleeve, bridge seal, and pan filter have been replaced with fresh ZF Lifeguard 6 fluid
Verified by IsItAGoodCar Research TeamUpdated

Front Lower Wishbone Rear Hydrobush Fluid Leak & Ball Joint Play

ModerateSuspension & Chassis

The large fluid-filled hydraulic compliance bushes on the curved front lower control arms rupture and weep black fluid, leading to steering shimmy under braking and MOT failure.

Est. Repair Cost: £280–£650
Warning Signs:

Steering wheel judder or vibration under moderate braking from 60mph, Dull knocking sound from front wheels over sharp road joints, Uneven front tyre shoulder wear

What to Inspect:
  • Inspect front lower curved wishbone rear bushes for oily black silicone staining
  • Pry lower ball joints to test for vertical play
Verified by IsItAGoodCar Research TeamUpdated

Dual Climate Control Valve (DCCV) Solenoid Short & Module Burnout

MinorInterior & Trim

The dual solenoid heater water valve mounted in the engine bay leaks coolant internally into its electrical coils, shorting out and blowing the heater control circuit traces inside the cabin climate control module (RCCM).

Est. Repair Cost: £150–£350
Warning Signs:

Heater blows blistering hot air from vents even when AC is set to lowest temperature, Driver side blows cold while passenger side blows hot, Air conditioning compressor clicks off immediately

What to Inspect:
  • Cycle both sides of dual-zone climate control through maximum cold (Lo) and maximum hot (Hi)
  • Verify cold refrigerated airflow from all dashboard vents
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2005 Jaguar S-Type

  • Check for "the lurch" on cars with the ZF 6-speed automatic (2002-2008).
  • Inspect the rear subframe and sills for corrosion, as with the X-Type.
  • The 2.7 V6 Diesel is a smooth engine but requires frequent "Italian Tune-ups" to keep the DPF and EGR valves clear.