2003–2005 MG Rover Rover 25 / MG ZR
Browse our directory of 2003–2005 MG Rover Rover 25 / MG ZR vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2003–2005 MG Rover Rover 25 / MG ZR has 4 known issues. 1 of these are classified as serious faults that could be expensive to repair. 3 are moderate concerns worth inspecting before purchase.
K-Series Head Gasket Failure
SeriousThe standard gasket can fail due to plastic dowels and overheating.
Symptoms: Oil/Coolant mixing, Overheating
Est. repair cost: £500–£800
SCU / BCU Relay Failure (Pektron)
ModerateModels from 2003 onwards use a Pektron Security Control Unit. The internal relays fail, affecting windows, wipers, central locking, and alarm.
Symptoms: Intermittent wipers, Central locking not working...
Est. repair cost: £150–£300
Rusting Rear Arches
ModerateWater gets trapped behind the lip of the rear wheel arches, causing rust to rot through from the inside. This is a common MOT advisory.
Symptoms: Bubbling paint on the rear arch edges, Visible corrosion...
Est. repair cost: £300–£600
Sunroof and Tailgate Leaks
ModerateThe sunroof drains and tailgate seals are known to leak, causing damp carpets and a musty smell in the cabin. Water can also affect electrical components.
Symptoms: Wet carpets, Damp smell in the cabin...
Est. repair cost: £50–£200
Buying Tips for the 2003–2005 MG Rover Rover 25 / MG ZR
- ✓Always check the oil and coolant for signs of mixing (HGF).
- ✓Check the rear arches for rust.
- ✓Ensure all key fobs work, as programming new ones to the SCU can be tricky.
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