UK Buyer Reliability Guide4 Known Faults Documented

Rover 800 Series Common Problems & Reliability

Rover's flagship executive car. Early cars had electrical issues; later "R17" models were better but the KV6 engine was problematic.

2
Generation Periods
4
Known Issues
1
Critical Faults
3
Moderate Issues

Select a Model Year Period

Detailed fault breakdown, symptoms, and estimated repair bills by production year.

Most Common Rover 800 Series Faults & Repair Costs

High Risk

KV6 Early Head Gasket/Liner Failure

Est. Cost£1,000+

The 2.5 KV6 in the 800 was prone to catastrophic failure due to slipped cylinder liners.

Warning Signs:

Rapid overheating, Coolant pressurisation, Engine failure

Moderate Risk

Electric Window Regulator Failure

Est. Cost£100–£250

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.

Warning Signs:

Window dropping back down after being raised, Window hesitant to move, Grinding noise from window mechanism

Moderate Risk

Rust on Rear Wheel Arches

Est. Cost£200–£600

The rear wheel arches are prone to rusting, which can spread and become structural if left untreated.

Warning Signs:

Bubbling paint on rear arches, Visible corrosion, MOT failure

Moderate Risk

Electrical Gremlins (Windows, Central Locking)

Est. Cost£50–£300

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.

Warning Signs:

Windows not working, Central locking intermittent, Random dashboard warning lights, Trip computer displaying codes

Essential Pre-Purchase Step

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.

Inspection Checklist for Rover 800 Series Buyers

Avoid the early (pre-1996) KV6 engines if possible; they are far less reliable than the later 75 version.
The 820 Vitesse (T-Series Turbo) is a fast and robust choice.
Check all electrical toys (seats, windows, mirrors) as they often fail.