IsItAGoodCar
Reliability Guide

Common Problems with the
2012 Caterham Seven (Rover K-Series)

We've identified 1 known issue that can affect the 2012 Caterham Seven (Rover K-Series). 1 of these are serious faults that could be expensive to repair.

1
Known Issues
1
Serious
0
Moderate
0
Minor

All Known Issues

Sump Foam Baffle Disintegration and Oil Starvation

SeriousEngine

The Rover K-Series was designed as a transverse engine, so its oil pick-up draws from one side of the sump. Under sustained cornering on track the oil can surge away from the pick-up, and Caterham fitted a foam sump baffle to keep it submerged. That foam disintegrates with age and heat cycling; loose fragments can block the oil feed pipe, and a missing baffle offers no surge protection, so the engine can be starved of oil and its bearings wiped. Caterham's standard oil pressure gauge is also notoriously unreliable, so low pressure may not be noticed until damage is done. Tracked K-Series Sevens usually have the baffle inspected, replaced or removed, or run a dry sump or oil accumulator.

Est. Repair Cost: £150–£400
Warning Signs:

Oil pressure reading erratic or falling in long corners, Rattle or knock from the top end after track use, Bearing noise, or seizure in extreme cases

What to Inspect:
  • Ask whether the sump foam baffle has been inspected, replaced or removed
  • Look for invoices showing sump baffle and gasket replacement
  • Check for a mechanical oil pressure gauge, oil accumulator or dry-sump fitment
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2012 Caterham Seven (Rover K-Series)

  • Verify the engine has been upgraded with a multi-layer steel (MLS) head gasket and uprated oil rail to prevent head gasket failure.
  • Inspect the tubular steel chassis closely for signs of rust or poorly repaired accident damage, especially near the suspension mounts.
  • Check the condition of the aluminium body panels for galvanic corrosion where they meet the steel chassis.
  • Examine the "A-frame" rear suspension for wear in the bushes, which can cause unpredictable handling.
  • Look for evidence of regular oil changes and cooling system maintenance, as the K-Series is highly sensitive to overheating.
  • If the car has been heavily tracked, check the condition of the gearbox syncros and the limited-slip differential.
Check a 2012 Caterham Seven (Rover K-Series) by Registration