Rover Metro Problems & Known Issues

The rear subframe mounting points on the Metro are part of the main bodyshell structure and are prone to severe corrosion that compromises structural integrity. This affects the load-bearing capacity within the prescribed 30cm zone around suspension mounting points as defined in MOT regulations. The failure typically occurs where the rear trailing arm mounts to the body, creating a dangerous situation where suspension geometry becomes unstable. This is a well-documented weakness of the Metro's pressed steel construction and salt-trap design around the rear suspension.

The Metro's brake system suffers from multiple age-related failures that combine to create dangerous braking efficiency problems. The main issues are brake caliper seizure due to corrosion, brake pipe corrosion causing fluid leaks and pressure loss, and brake imbalance across axles. The single-circuit brake system design means that any significant leak or caliper seizure can compromise braking on an entire axle, leading to MOT failures for both efficiency and imbalance defects.

The K-Series engines in the Metro are particularly prone to emissions system failures that cause MOT failures at exceptionally high rates. This typically involves the catalytic converter becoming contaminated or damaged due to head gasket failure allowing coolant into the combustion chamber, or lambda sensor failure affecting the air-fuel mixture. The K-Series engine's known head gasket weakness creates a cascade effect where coolant contamination destroys the catalyst and lambda sensors, leading to emissions readings that exceed default limits by significant margins.

The constant velocity joint rubber boots on Metro driveshafts deteriorate at significantly higher rates than typical for the vehicle age due to the boot material specification and design. When the rubber boot splits or tears, it allows water and dirt ingress while letting the protective grease escape, leading to rapid CV joint wear and eventual failure. This is particularly problematic on the outer CV joints which experience greater articulation angles during steering lock.