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Renault R5 Problems & Known Issues

The most common Renault R5 problems ranked by severity — what to watch for, what it costs to fix, and what happens if you ignore it.

Generations

R5_MkI — Renault 5 Mark I
1981–1985
1.1 8v, 1.4 8v
R5_MkII — Renault 5 Mark II
1985–1996
1.1 8v, 1.4 8v, 1.4 8v

Top issues to watch for

The most serious Renault R5 problems ranked by severity. We track 5 known issues — here are the ones you need to know about first.

Dangerous
Subframe and suspension mounting point structural failure
R5_MkII1985–199640k–120k miles
The load-bearing structure around suspension mounting points deteriorates through corrosion and stress cracking on 1990s Renault 5 models. MOT data shows this model fails at 3465.8 times the national fleet average for structural failure within 30cm of suspension mounting points. This affects the car's fundamental structural integrity and safety. The steel monocoque construction is particularly vulnerable where the rear axle mounts to the body shell and where front suspension turrets attach to the bulkhead.
What happens if ignoredStructural failure around suspension mounting points creates an immediate safety hazard. The suspension may detach from the body during driving, causing complete loss of vehicle control. Repair typically requires professional welding and structural reinforcement. Many examples are beyond economical repair when this occurs.
Independent garage
£800–£2,000
Specialist
£1,200–£2,500
Parts only
£150–£400
Dangerous
Brake hose ferrule corrosion
R5_MkII1985–199640k–80k miles
Brake hose ferrules (the metal crimped fittings where flexible brake hoses connect to rigid brake lines) corrode at 117.4 times the fleet average on the Renault 5. The ferrules are made from mild steel that rusts when exposed to road salt and moisture. Corroded ferrules can separate under brake pressure, causing complete brake failure on the affected circuit. This is a critical safety defect that requires immediate attention.
What happens if ignoredFerrule failure causes immediate and complete loss of braking on the affected circuit. On cars with front-rear split brake systems, this means total loss of either front or rear brakes. The car may be undriveable and presents an extreme safety hazard. Emergency repair requires immediate professional attention.
Independent garage
£80–£150
Specialist
£100–£180
Parts only
£40–£80
Major
Excessive fluid leakage from engine and transmission
R5_MkII1985–199640k–120k miles
Engine oil and transmission fluid leaks are significantly more common on the Renault 5 than the average car, with MOT data showing failures at Aging rubber seals, gaskets, and oil cooler connections deteriorate on these 1990s engines. The manual gearbox shares oil with the final drive and commonly leaks from the driveshaft seals and filler plug. Environmental MOT failures indicate leakage severe enough to pose safety risks to other road users.
What happens if ignoredSevere leakage can cause engine or gearbox damage through oil starvation. Oil on the road surface creates hazards for motorcyclists and other vehicles. Engine oil leaks may cause fire risk if oil contacts hot exhaust components. Transmission oil loss leads to gear selection difficulties and eventual gearbox failure.
Independent garage
£120–£400
Specialist
£150–£500
Parts only
£25–£120
Major
Wheel bearing failure
R5_MkII1985–199680k–120k miles
Wheel bearings fail at 3465.8 times the national average on 1990s Renault 5 models. The front wheel bearings are particularly prone to wear, partly due to the lightweight construction and partly due to water ingress through aging seals. Failed bearings cause dangerous wheel wobble, steering instability, and can lead to wheel detachment in extreme cases. The rear drum brake models also show higher than average rear bearing failure rates.
What happens if ignoredSeverely worn wheel bearings cause dangerous handling instability and steering pull. In extreme cases, bearing seizure can lock a wheel or cause wheel detachment. Failed bearings also damage the hub assembly, increasing repair costs if left unaddressed. The car should not be driven if bearing failure is suspected.
Independent garage
£120–£250
Specialist
£150–£300
Parts only
£40–£120

1 more known issues tracked

Including wear items, electrical niggles, and generation-specific problems. Check a specific car to see which issues apply to its age and mileage.

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MOT failure hotspots

Based on DVSA MOT test data. These are the items where the Renault R5 fails at a significantly higher rate than the average car.

Emissions failure
Exhaust & Emissions · 60-80k miles
MOT failure rate: 260x the fleet average
Sample: 184 tests
Light unit fault
Lights & Electrics · 40-60k miles
MOT failure rate: 131x the fleet average
Sample: 292 tests
Steering rack wear
Steering · 40-60k miles
MOT failure rate: 84x the fleet average
Sample: 143 tests
Structural corrosion
Bodywork · 40-60k miles
MOT failure rate: 37x the fleet average
Sample: 137 tests
Brake hoses perished or damaged
Brakes · 40-60k miles
MOT failure rate: 35x the fleet average
Sample: 216 tests
ABS fault
Suspension · 40-60k miles
MOT failure rate: 31x the fleet average
Sample: 210 tests

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Related

Renault R5 reliability FAQs

What are the most common problems with the Renault R5?

The Renault R5 has 5 known issues across 2 severity levels. The most serious are: Subframe and suspension mounting point structural failure, Brake hose ferrule corrosion.

Is the Renault R5 reliable?

The Renault R5 has 2 dangerous and 3 major known issues. Most can be avoided with a thorough pre-purchase check and full service history.

How much does it cost to fix Renault R5 problems?

Repair costs range widely. The most significant issue (Subframe and suspension mounting point structural failure) costs £800–£2,000 at an independent garage. Minor issues can be under £200. Always get a full inspection before buying.

Which Renault R5 generation is most reliable?

The R5_MkI (1981–1985) has the fewest dangerous issues (0). However, condition and service history matter more than generation — a well-maintained earlier car can be more reliable than a neglected newer one.