Rover 800 Series Common Problems & Reliability
The Rover 800 Series served as Rover's flagship executive saloon, fastback, and luxury coupé between 1986 and 1999, engineered initially in close co-development with Honda on the first-generation Legend platform (Project XX). Designed to restore British luxury prestige across corporate executive car parks and government ministerial fleets, it combined classic wood veneer and Connolly leather appointments with Japanese-derived chassis geometry. In the UK used market, surviving examples are cherished modern classics celebrated for their supreme long-distance cruising comfort and distinctive period presence. Reliability varies dramatically across engine options: while Honda-sourced 2.7-litre V6 powerplants and Rover's tough 2.0-litre T-Series petrol units are remarkably durable, early KV6 installations require diligent monitoring for cylinder liner slippage. Prospective buyers face aging British Lucas electrical systems, brittle switchgear, and structural rust around the rear wheel arches and sill jacking points.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Rover 800 Series Faults & Repair Costs
KV6 Early Head Gasket/Liner Failure
The 2.5 KV6 in the 800 was prone to catastrophic failure due to slipped cylinder liners.
Rapid overheating, Coolant pressurisation, Engine failure
- Evidence of recent engine work or replacement
Electric Window Regulator Failure
Later R17 models are particularly known for electric windows failing. The windows can slide back down after being raised, or become hesitant and difficult to operate.
Window dropping back down after being raised, Window hesitant to move, Grinding noise from window mechanism
- Test all electric windows through their full range
Rust on Rear Wheel Arches
The rear wheel arches are prone to rusting, which can spread and become structural if left untreated.
Bubbling paint on rear arches, Visible corrosion, MOT failure
- Inspect the rear arches carefully for rust
Electrical Gremlins (Windows, Central Locking)
The 800 series is known for various electrical issues, including failing electric windows, central locking faults, and intermittent dashboard warning lights. These are often age-related wiring and relay issues.
Windows not working, Central locking intermittent, Random dashboard warning lights, Trip computer displaying codes
- Test all electrical accessories
- Check for loose or corroded wiring connections
Buying a used Rover 800 Series? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.