IsItAGoodCar
Reliability Guide

Common Problems with the
2011 Lotus Exige S2

We've identified 3 known issues that can affect the 2011 Lotus Exige S2. 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
2
Moderate
0
Minor

All Known Issues

Rear Toe Link Ball Joint Wear and Loosening

SeriousSuspension & Chassis

The rear toe control links on the Exige S2 are subjected to immense cornering stress, accentuated by track-focused geometry and high-grip Yokohama tyres. The factory outer ball joints and tapered studs can work loose or fatigue under repeated track load. In extreme track use, ball studs have sheared, resulting in instant rear suspension geometry collapse and unrecoverable high-speed snap oversteer. Specialists strongly advocate replacing factory links with a centre-braced motorsport toe link kit featuring high-tensile spherical rose joints.

Est. Repair Cost: £450–£950
Warning Signs:

Twitchy, nervous rear-end handling and directional instability under heavy braking, Knocking or metallic rattling sounds from the rear suspension over uneven tarmac, Uneven or accelerated wear on the inside edges of the rear tyres

What to Inspect:
  • Jack up rear wheels and firmly shake the wheel at the 3 and 9 o'clock positions to detect play in the toe links
  • Inspect the rear subframe to verify if an uprated centre-braced toe link kit (e.g. Spitfire or Lotus Motorsport) is installed
  • Check four-wheel alignment documentation for consistent rear toe readings over time
Verified by IsItAGoodCar Research TeamUpdated

Toyota C64 Gearbox 2nd and 3rd Gear Synchromesh Wear

ModerateGearbox & Transmission

The Toyota C64 6-speed manual transmission is subjected to intense shock loads in the Exige S2, especially on supercharged Exige S models driven aggressively on track. The brass synchromesh rings on 2nd and 3rd gear wear prematurely under rapid, high-rev downshifts and heavy track use. Initial symptoms appear as balking, notchiness, or a graunching crunch when shifting into 3rd gear, or when dropping down from 3rd to 2nd with cold transmission fluid. Rebuilding the gearbox requires dropping the rear undertray and removing the gearbox from the engine cradle, incurring substantial labour costs.

Est. Repair Cost: £900–£1,800
Warning Signs:

Audible crunching or resistance when engaging 3rd gear at high engine speeds, Notchy or stiff gear engagement when downshifting into 2nd gear from cold, Transmission whine under deceleration in 2nd and 3rd gears

What to Inspect:
  • Execute quick upshifts and downshifts between 2nd and 3rd gears with the transmission fluid both cold and fully warm
  • Inspect service history for regular gearbox oil changes with high-performance synthetic lubricants
  • Check gear linkage cables for excessive play or binding at the gearbox cross-gate bellcrank
Verified by IsItAGoodCar Research TeamUpdated

Radiator Plastic End-Tank Seam Failure

ModerateCooling System

The factory Exige S2 radiator uses an aluminium cooling matrix with crimped composite plastic end tanks. Over repeated thermal cycles and UK road vibrations, the crimped seams fatigue, loosen, and weep coolant along the end-tank joints. A weeping radiator will steadily lose engine coolant, risking catastrophic overheating for the all-aluminium Toyota 2ZZ-GE engine. Replacing the radiator is an involved 'clam-off' procedure requiring complete front bodywork disassembly, making an upgrade to an all-aluminium welded radiator the industry-standard preventative repair.

Est. Repair Cost: £700–£1,200
Warning Signs:

Sweet smell of warm engine coolant drifting from the front nose grilles, Gradual drop in coolant level in the translucent rear header tank, Coolant mist or steam venting from front extraction grilles in stationary traffic

What to Inspect:
  • Peer through the front nose intake with an inspection torch for dried pink or red coolant crust along the lower radiator seams
  • Verify whether the radiator has been replaced with an upgraded all-alloy unit (such as Pro Alloy or Eliseparts)
  • Examine front clamshell panel gaps to confirm careful previous removal and refitting
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2011 Lotus Exige S2

  • Test the 6-speed manual gearbox thoroughly on test drive; listen and feel for crunching or hesitation into 2nd and 3rd gears, particularly when cold.
  • Check whether the standard rear suspension toe links have been upgraded to motorsport-grade braced rod-end kits, essential for track work.
  • Inspect the front radiator through the lower nose grilles for weeping plastic end tanks, and verify if an all-aluminium radiator is fitted.
  • Examine the front composite splitter and lower clamshell underside for kerb impacts, spider-cracking, and grounding damage over speed humps.
  • Ensure air conditioning (if equipped) blows ice-cold; cabin heat soak from the mid-mounted engine makes functional air conditioning crucial for road use.
Check a 2011 Lotus Exige S2 by Registration