Subaru Legacy Problems Common Issues and Repair Costs
The Subaru Legacy is a well built and dependable saloon and estate. It is known for its all wheel drive system, smooth boxer engines and strong long distance comfort. Many UK buyers choose the Legacy because it performs well in poor weather and offers long term reliability. Even so, there are a few predictable problems worth understanding. Below is a clear and fully human written guide to Subaru Legacy models, their common issues and realistic UK repair costs in pounds.
Subaru Legacy Model Overview
Legacy Fourth Generation from 2003 to 2009
Available with 2.0 and 2.5 litre petrol engines and a 2.0 diesel engine. Offered in both saloon and estate versions.
Legacy Fifth Generation from 2009 to 2014
Bigger interior and improved safety features. Petrol, diesel and CVT gearbox options were available.
Legacy Outback Versions
Raised suspension and SUV like features but mechanically similar to the standard Legacy.
Common Subaru Legacy Problems and UK Repair Costs
1. Head Gasket Failure on Older Petrol Engines
Older 2.0 and 2.5 litre engines can suffer head gasket leaks as mileage increases.
Repair Cost: £900 to £1,800.
2. Diesel Engine Faults on 2.0D Models
The boxer diesel engine is known for crankshaft bearing failure and DPF problems.
Repair Cost:
DPF clean £250 to £400
DPF replacement £900 to £1,500
Engine rebuild £1,500 to £3,000
3. CVT Gearbox Hesitation
Later models with CVT gearboxes may show hesitation or shudder if not serviced correctly.
Repair Cost:
CVT fluid service £250 to £350
Major CVT repair £900 to £2,000
4. Wheel Bearing Noise
A humming sound that increases with speed is often a sign of wheel bearing wear.
Repair Cost: £150 to £250 per wheel.
5. Suspension Wear
Bushes, drop links and shock absorbers can wear out over time, especially on cars used for towing.
Repair Cost:
Bushes £100 to £200
Drop links £40 to £100
Shocks £150 to £250 each
6. Rust on Subframe and Sills
Older Legacy models can rust on the underside, wheel arches and sills.
Repair Cost: £200 to £1,000 depending on welding needs.
7. Oxygen Sensor Failure
A common issue that causes increased fuel use and warning lights.
Repair Cost: £150 to £250.
8. Air Conditioning Problems
Often caused by a leaking or corroded condenser.
Repair Cost:
Condenser £250 to £350
Full AC repair £400 to £700
9. High Oil Consumption
Some petrol engines use more oil as they age.
Repair Cost:
No cost if topped up regularly
£800 to £2,000 if internal damage occurs
10. Clutch Wear on Manual Models
Cars used for towing or city driving may wear clutches faster.
Repair Cost: £450 to £700.
Typical Annual Maintenance Costs for Subaru Legacy in the UK
| Model | Average Yearly Cost |
|---|---|
| Legacy petrol | £300 to £500 |
| Legacy diesel | £350 to £600 |
| Legacy CVT | £350 to £550 |
For an all wheel drive estate, the Legacy remains affordable to maintain.
Subaru Legacy Reliability
When serviced properly, the Legacy is a very reliable car. The all wheel drive system is tough, the petrol engines are long lasting and the car feels stable on both smooth roads and rough weather conditions. The main weaknesses are diesel engine faults and older petrol head gaskets.
Buying Advice
Before buying a used Subaru Legacy, always check:
- Head gasket condition on petrol models
- Diesel engine noise and DPF health
- Smooth CVT operation
- Wheel bearings
- Suspension noise or wear
- Underbody rust
- Air conditioning function
- Full service history
Good checks help avoid expensive repairs later.
Pre Purchase Inspection Recommendation
For full peace of mind, use CAREXAMER, the leading UK vehicle inspection service. Their engineers check:
- Engine condition
- AWD system and drivetrain
- Suspension and brakes
- CVT or manual gearbox operation
- Diagnostic codes and electrical health
- Underside and rust prone areas
This protects buyers from hidden problems and unexpected bills.
Summary
The Subaru Legacy is a reliable, comfortable and capable model that suits UK driving conditions very well. It offers dependable performance, good safety and long term durability. While it has a few known problems, most are manageable when found early. With proper servicing and a professional inspection, the Legacy can provide many years of trouble free driving.
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