XJ6 (Series I-III)

1968-1992 / Sedan / United Kingdom

All XJ6 (Series I-III) problems All workshop issues

Minor Climate Control

Air conditioning system failure

Symptoms

A/C doesn't cool, compressor won't engage, strange noises from under the bonnet.

Cause

The A/C system is complex and every component degrades with age, compressor seals leak, condensers corrode, evaporators fail, and the control system (vacuum-operated flaps on many XJ6 models) deteriorates. Early systems used R12 refrigerant, which requires conversion to R134a.

Fix

Full A/C system diagnosis and overhaul.

Retrofit to R134a if still on R12.

Replace failed components.

Budget $2,000-5,000 AUD for a comprehensive A/C restoration.

Cost mentioned in fix

Budget $2,000-5,000

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// More XJ6 (Series I-III) problems

Other known issues

Common Climate Control

Heater matrix leak

Coolant smell in the cabin, damp carpet on the passenger side, fogged windscreen. Coolant level drops with no external leak.

Minor Bodywork and Rust

Sill corrosion (structural)

Outer sills bubble and perforate. Inner sills rot silently behind trim. The car's rigidity decreases, doors sag, gaps become uneven, and the body flexes over bumps.

Minor Bodywork and Rust

Floor pan corrosion

Floor pans rot from underneath or from above (water sitting under carpets). In severe cases, you can see the road through the floor.

Common Bodywork and Rust

Rear wheel arch and lower rear quarter corrosion

Rust appears at the bottom of the rear wings, around the wheel arches, and in the lower panels between the wheels and boot.

Common Bodywork and Rust

Boot floor and spare wheel well corrosion

The boot floor rusts through, the spare wheel well fills with water, and the rot spreads to surrounding panels.

Common Bodywork and Rust

Front wing corrosion

Bubbling around headlights, indicator mounts, and the bottom edges of the front wings.

View all 28 XJ6 (Series I-III) problems