Brake Master Cylinder Recall
SeriousBrakesA critical safety recall was issued for the brake master cylinder which could lead to a loss of braking pressure.
Est. Repair Cost: £0 (Recall)
Reliability GuideCommon Problems with the
Common Problems with the
2020 Morgan Plus Four / Plus Six (CX-Generation)
The Morgan Plus Four launched on the CX-Generation aluminium platform, replacing the classic +4 after 70 years. Powered by a BMW 2.0L turbo four-cylinder with 255hp, it offered a massive leap in rigidity and refinement over its predecessor while retaining the traditional ash frame and hand-built character.
What changed for 2020
- •All-new bonded aluminium CX-Generation platform
- •BMW B48 2.0L turbo four-cylinder (255hp)
- •6-speed manual or 8-speed ZF automatic
- •First new Plus Four on the aluminium platform
Common MOT watch-outs
- !Water ingress through door seals and windscreen perimeter
- !Early radiator leak issues on some cars
5
Known Issues
1
Serious
3
Moderate
1
Minor
All Known Issues
Radiator Leaks
ModerateCooling SystemSeveral early CX-generation cars suffered from failing radiator cores, leading to coolant loss.
Est. Repair Cost: £600–£1,000 (Often warranty)
BMW B58 Oil Filter Housing & Coolant Leaks
ModerateEngineThe B48/B58 engines can suffer from cracked oil filter housing gaskets and coolant return line leaks. The filter housing sits under the intake manifold, making access difficult and labour-intensive.
Est. Repair Cost: £500–£1,200
BMW B58 Oil Filter Housing & Coolant Leaks
ModerateEngineThe B48/B58 engines can suffer from cracked oil filter housing gaskets and coolant return line leaks. The filter housing sits under the intake manifold, making access difficult and labour-intensive.
Est. Repair Cost: £500–£1,200
Water Ingress & Weatherproofing
MinorBodywork & RustEven modern Morgans are not fully watertight. Doors, windscreen seals and hood fitment can allow water into the cabin, particularly at speed in rain. Owners often fit foam strips to door edges.
Est. Repair Cost: £50–£200 (DIY sealing)
Buying Tips for 2020 Morgan Plus Four / Plus Six (CX-Generation)
- ✓Test door seals carefully—water ingress is common even on modern Morgans
- ✓Check for evidence of the brake master cylinder recall being completed
- ✓Verify all BMW-related software updates have been applied