Reliability Guide
Common Caterham Problems
Select a model below to discover known faults, common MOT failures, estimated repair costs, and buying tips.
Select a Caterham Model
Brand-wide Caterham Problem Patterns
K-Series Head Gasket Failure (HGF): A common issue on older 1.4, 1.6, and 1.8 Rover-engined models—ensure MLS gasket and PRT are fitted.
Drivetrain "Clonk": A characteristic (often harmless but annoying) slack in the differential and propshaft assembly.
Chassis Corrosion: The thin-wall tubular chassis can rust quickly if the powder coating is compromised—inspect annually.
De Dion Tube Cracking: Structural failure of the rear suspension beam under high stress, particularly on track-driven cars.
Starter Motor Failure: Heat from the exhaust manifold cooks the solenoid, leading to a "click" but no start when hot.
Cooling System Degradation: Small coolant capacity makes the K-Series intolerant of any weakness—hoses perish, fan switches stick.
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