IsItAGoodCar
Reliability Guide

Common Problems with the
2023 INEOS Grenadier Station Wagon

UK customer deliveries commence for the Grenadier Station Wagon in standard, Fieldmaster, and Trialmaster trims with BMW B58 petrol and B57 diesel powertrains.

What changed for 2023

  • •Official British showroom launch with standard 3.0-litre BMW straight-six powertrains and ZF 8-speed automatic
  • •Introduction of Fieldmaster Edition with safari roof windows and Trialmaster Edition with Rough Pack differential lockers
  • •Implementation of 3,500kg towing capacity, Carraro solid beam axles, and full-time four-wheel drive with Tremec transfer case

Common MOT watch-outs

  • !Steering idler arm and drag link ball-joint free play following heavy off-road use or aggressive rock crawling
  • !Minor surface oxidisation on exposed chassis weld seams and untreated suspension mounting brackets from road salt
  • !Headlamp beam alignment drift caused by heavy rear cargo loading without suspension levelling adjustments
5
Known Issues
1
Serious
4
Moderate
0
Minor

All Known Issues

Exterior door handle push-button sticking (safety recall)

SeriousBodywork & Rust

INEOS issued a major safety recall affecting Grenadier models produced between 2022 and 2024 due to sticking exterior door handle push-buttons. Insufficient grease applied to the internal mechanism during factory assembly allows the rugged mechanical button to remain stuck in the depressed position when pressed. If closed while the button is stuck, the door latch fails to engage the striker plate securely, creating a severe hazard where vehicle doors can fly open unexpectedly while driving. Authorized INEOS workshops inspect, lubricate, or replace the complete button latch assemblies free of charge under recall.

Est. Repair Cost: £0–£350
Warning Signs:

Exterior door release button remains recessed after being pushed to open the door, Door bounces back open or refuses to click shut securely when swung closed, Door ajar instrument cluster warning light illuminates intermittently while driving

What to Inspect:
  • Press every exterior door handle button repeatedly to verify that each pops back out smoothly with strong spring tension
  • Pull firmly on each door from the outside after closing to ensure the two-stage latch has fully engaged the B-pillar and C-pillar strikers
  • Check the vehicle VIN on the official GOV.UK recall database or request service documentation confirming completion of campaign code recalls

Recirculating-ball steering wander and reluctant self-centring

ModerateSteering

Early Grenadier Station Wagons (2022–2025) utilise a heavy-duty Bosch recirculating-ball steering box paired with a hydraulic steering damper. While robust for absorbing rock strikes off-road, the setup features a slow 3.85 turns lock-to-lock ratio and virtually no natural self-centring elasticity on tarmac. Drivers must physically unwind lock after negotiating bends and constantly correct slight drift on undulating UK motorways. In mid-2025, INEOS introduced a revised Bosch steering box with a variable-ratio worm gear and increased return-to-centre assistance, which can be retrofitted to early cars.

Est. Repair Cost: £450–£1,650
Warning Signs:

Steering wheel does not return to centre after negotiating a roundabout or 90-degree turn, Continuous wandering and micro-corrections required to hold a straight line at 60–70mph, Heavy, numb on-centre steering response with noticeable deadband around the straight-ahead position

What to Inspect:
  • During your road test, execute a 90-degree turn and observe whether the steering wheel unwinds smoothly without manual assistance
  • Hold a steady 65mph on a straight dual carriageway to check how much constant steering correction is needed to maintain lane discipline
  • Inspect the front steering linkage, pitman arm, and drag link ball joints on a vehicle ramp for excessive play or worn rubber boots
Verified by IsItAGoodCar Research TeamUpdated

Central touchscreen interface freezing and ADAS alert glitches

ModerateElectrics & Electronics

The Grenadier places all driver instrumentation, speed displays, and infotainment controls into a single 12.3-inch central touchscreen. Early production vehicles running initial software builds suffer from system freezes, slow boot sequences on frosty mornings, delayed reversing camera feeds, and wireless smartphone disconnects. In addition, mandatory EU/UK driver assistance systems (such as intelligent speed assistance and driver drowsiness detection) can trigger persistent false audible alerts. INEOS dealers resolve these issues through comprehensive ECU software reflashes and firmware updates.

Est. Repair Cost: £120–£450
Warning Signs:

Central 12.3-inch display screen goes black or freezes upon initial vehicle startup, Persistent false audible chiming from the speed limit recognition or lane keep assist systems, Intermittent Bluetooth dropouts and delayed response when toggling climate or off-road telemetry screens

What to Inspect:
  • Power on the vehicle from cold and verify that the central display boots swiftly without lag, visual artefacts, or blank screens
  • Test wireless Apple CarPlay or Android Auto connectivity, checking that navigation prompts and audio playback remain uninterrupted
  • Confirm with the seller or franchised dealer that the vehicle's body control and infotainment ECUs have received the latest software updates
Verified by IsItAGoodCar Research TeamUpdated

Roof safari window and split rear cargo door water ingress

ModerateBodywork & Rust

Fieldmaster models equipped with twin pop-up safari glass panels above the front seats, as well as standard wagons with split rear barn doors, can suffer from moisture ingress during wet British weather or high-pressure jet washing. The perimeter rubber seals around the safari windows can become compressed or pinched, allowing water to trickle into the overhead console and sun visors. At the rear, if the narrower left-hand barn door is not closed firmly before the larger right-hand door, the dual-lip rubber weatherstripping fails to seal, causing pooling in the rear footwells and boot floor.

Est. Repair Cost: £180–£550
Warning Signs:

Damp patches or watermark staining on the cabin headlining around the overhead switch panel, Water droplets collecting on the interior faces of the safari roof glass panels after heavy rain, Moisture accumulation and musty odours beneath the rear rubber cargo floor mats

What to Inspect:
  • Inspect the headlining surrounding the safari glass panels for tide marks, dampness, or mildew smells
  • Check the rubber weatherstrip along the central seam of the rear barn doors for pinches, tears, or misalignment
  • Test the safari window latches to ensure they lock down firmly with even perimeter clamping pressure
Verified by IsItAGoodCar Research TeamUpdated

BMW B57 diesel DPF saturation and AdBlue injector crystallisation

ModerateExhaust & Emissions

The 3.0-litre BMW B57 straight-six turbodiesel is a refined engine, but when fitted to vehicles used predominantly for short local trips, school runs, or low-speed estate patrols, it cannot sustain the exhaust temperatures required for passive diesel particulate filter (DPF) regeneration. Soot builds rapidly in the filter canister, while the selective catalytic reduction (SCR) AdBlue dosing injector crumbles with crystallised urea deposits. If ignored, the ECU enters limp-home power reduction mode and triggers an irreversible non-restart countdown requiring workshop forced regeneration or ultrasonic cleaning.

Est. Repair Cost: £250–£1,400
Warning Signs:

Exhaust emissions warning light and DPF soot level warning illuminated on the central screen, Engine enters limp-home mode with noticeable power deficit and restricted throttle response, AdBlue system malfunction alert warning of engine restart refusal in 200–500 miles

What to Inspect:
  • Ask the seller about their daily driving profile; prioritize diesel models with regular 30-minute motorway journeys
  • Plug in an OBD-II diagnostic tool to read DPF soot loading percentage and exhaust back-pressure sensor values
  • Inspect the AdBlue tank filler neck and under-car dosing module for white crusty urea crystalline deposits
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2023 INEOS Grenadier Station Wagon

  • Verify that the official DVSA door handle push-button sticking recall campaign has been completed by an authorized dealer
  • Check that the 12.3-inch central touchscreen has received the latest firmware patches to eliminate instrument cluster flickering
  • Inspect front and rear differential breathers and axle casings for signs of oil misting or deep water ingress contamination