K-Series Head Gasket Failure (HGF)
SeriousEngineThe 1.1, 1.4, 1.6, and 1.8 engines are all prone to gasket failure due to plastic dowels and a small coolant capacity.
Est. Repair Cost: £500–£800
Reliability GuideCommon Problems with the
Common Problems with the
1999 Rover 25
The Rover 25 launched as a facelifted evolution of the popular 200 Series, sharing its mechanicals with the MG ZR. Available with K-Series engines from 1.1 to 1.8 litres, it offered a budget-friendly hatchback experience but inherited the K-Series head gasket vulnerability that would define its ownership story.
What changed for 1999
- •UK launch as successor to the Rover 200 Series
- •K-Series engines from 1.1 to 1.8 litres
- •Shared mechanicals with MG ZR
- •Conventional steel chassis with independent rear suspension
Common MOT watch-outs
- !K-Series head gasket failure—check oil cap and expansion tank
- !Rusting rear arches from trapped moisture
2
Known Issues
1
Serious
1
Moderate
0
Minor
All Known Issues
Rusting Rear Arches
ModerateBodywork & RustWater gets trapped behind the lip of the rear wheel arches, causing rust to rot through from the inside.
Est. Repair Cost: £300–£600
Buying Tips for 1999 Rover 25
- ✓Check the oil filler cap and coolant expansion tank for contamination
- ✓Inspect the rear arch inner lips for rust
- ✓Ensure the timing belt and water pump have been changed every 4 years