Scandinavian safety without the premium price tag
The Volvo S40 was a compact executive saloon competing against the BMW 3 Series, Audi A3 saloon and Mercedes C-Class at a lower price point. It attracted buyers who valued Volvo's safety reputation and Scandinavian design but couldn't stretch to a larger Volvo. The second generation (2004-2012) shared its platform with the Ford Focus and Mazda 3, making it more affordable to maintain than typical premium rivals.
We track 5 known issues across the Volvo S40 range, including 2 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Volvo S40? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
Mk1 (1995–2004) — Petrol options included the 1.6 16V, 1.6 8V, 1.7, 1.8, 1.8 GDI, 2.0, with 1.9 DI, 1.9 TD on the diesel side. Our database flags 5 known issues on this generation, 2 of which are rated as safety-critical. The most significant concern is Suspension component failure - pins, bushes and joints (£200–£400 to address).
Mk2 (2004–2012) — Petrol options included the 1.6, 1.8, 2.0, 2.4, 2.5 T5, with 1.6 D, 1.9 D, 2.0 D, 2.0 D, 2.0 D, 2.4 D5, 2.4 D5 on the diesel side. Our database flags 5 known issues on this generation, 2 of which are rated as safety-critical. The most significant concern is Suspension component failure - pins, bushes and joints (£200–£400 to address).
The S40 shows an exceptionally high failure rate for suspension pins, bushes and joints across all engine variants, with MOT data showing up to 1734.0 times the national fleet average failure rate. The most critical failures involve suspension components likely to become detached, reaching 1734.0 times the fleet average on diesel variants. This affects front lower arm bushes, anti-roll bar links, and rear suspension mounting points. The high failure rate appears across both generations and all mileage bands from 20,000 miles upward.
Critical suspension components can become detached, leading to immediate loss of vehicle control and potential serious accident. Even non-critical bush wear causes rapid tyre deterioration and poor handling. Comprehensive suspension bush replacement typically costs £800-1,500 depending on the extent of wear across the vehicle.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
Brake hose ferrules corrode at 106.6 times the fleet average on the S40, with flexible brake hoses deteriorating at 106.6 times the fleet average. This affects 1,317 recorded MOT failures across both generations. The metal ferrules that crimp the brake hoses to the rigid brake lines are particularly susceptible to corrosion from road salt. Brake hose deterioration appears from as low as 20,000 miles on some variants, indicating a fundamental design or material issue with the brake hydraulic system.
Corroded brake hose ferrules or deteriorated flexible hoses can cause brake fluid leakage, leading to brake system failure and potential loss of braking ability. This is a critical safety defect that makes the vehicle dangerous to drive. Complete brake hose replacement is typically required when corrosion is found, costing £300-600 depending on how many hoses need replacement.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
Steering rack gaiters and ball joint dust covers fail at 173.0 times the national fleet average on the S40, with over 2,200 MOT failures recorded. The rubber gaiters that protect the steering rack from dirt and moisture deteriorate prematurely, allowing contamination into the steering mechanism. This is particularly severe on 1.6-litre petrol variants from as low as 20,000 miles. Once split, the gaiters allow road dirt and salt to contaminate the steering rack internals.
Split gaiters allow road salt and dirt into the steering rack, causing internal corrosion and wear. This leads to steering heaviness, poor return-to-centre, and eventually complete rack failure requiring replacement. A replacement steering rack costs £600-1,200 plus labour. Early gaiter replacement prevents this expensive failure.
During the test drive, check the steering for excessive play, vibration or pulling to one side. Listen for groaning or whining when turning the wheel at low speed. Power steering fluid level and condition should be checked on hydraulic systems.
The S40 experiences power steering failures at 173.0 times the fleet average, with both fluid leaks and system malfunctions documented across 1,314 MOT failures. The hydraulic power steering pump, high-pressure pipes, and reservoir commonly develop leaks from 40,000 miles. Power steering pipe corrosion reaches 173.0 times the fleet average on 2.0-litre petrol variants. Both the pump itself and the metal pipes are prone to failure on this model.
Power steering pump failure results in heavy steering effort, making the vehicle difficult to control at low speeds and dangerous for emergency manoeuvres. High-pressure pipe failures can cause rapid fluid loss and complete loss of power assistance. Pump replacement costs £400-700, while corroded pipes typically require £200-400 to replace depending on accessibility.
During the test drive, check the steering for excessive play, vibration or pulling to one side. Listen for groaning or whining when turning the wheel at low speed. Power steering fluid level and condition should be checked on hydraulic systems.
The 1.8-litre petrol variants show severe emissions problems, failing MOT tests at This is coupled with excessive blue and black smoke emission at The pattern suggests fundamental engine wear or emissions control system failure specific to the 1.8-litre units, becoming critical above 80,000 miles. Both catalyst efficiency and engine oil consumption appear to be involved in this high failure rate.
Emissions failures prevent MOT pass and legal road use. Root causes often involve expensive engine wear or catalyst replacement. Catalyst replacement costs £600-1,200, while engine internal wear may require major rebuild work costing several thousand pounds. The car cannot be driven legally until emissions compliance is restored.
Check for any engine warning lights on the dashboard. Ask about the car's MOT emissions history — repeated failures suggest underlying issues. A pre-purchase diagnostic scan is especially worthwhile to check for stored emissions fault codes.
For the full breakdown of all 5 tracked issues with repair costs, see the Volvo S40 common problems page.
Based on 128k real DVSA MOT tests, the Volvo S40 fails more often than average on several items. The biggest outlier is suspension ball joints worn at 176x the fleet average, followed by power steering fault (120x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Volvo S40 MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 13k miles) typically costs £80–£120 at an independent garage.
The bigger-ticket items to budget for include timing belt (£400–£600), timing chain service (£800–£1,200).
See the full Volvo S40 service schedule for every interval and cost breakdown.
The Volvo S40 has some well-documented weak points, including 2 safety-critical issues that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable. 2009-2012 models are the safest bet, with the fewest reported complaints and the benefit of mid-life updates. The 2.4i inline-5 petrol is the most reliable engine choice. Avoid 2004-2006 models which suffered transmission failures and electrical problems.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific Volvo S40, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known Volvo S40 issues. We are not affiliated with any source listed.