Common Daihatsu Sirion Problems, Faults, and Repair Costs
Every known Daihatsu Sirion MOT issue, ranked by how common it is and what it costs to fix. Based on 10,921 real MOT tests across 13 model years.
Segment: small family car | Fuel: Petrol
73%
Daihatsu Sirion pass rate
71%
Daihatsu average
82%
National average
The Daihatsu Sirion has an average MOT pass rate of 73%, which is 2 points above the Daihatsu average and 9 points below the national average. Newer DAIHATSU SIRIONs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Check Your Daihatsu Sirion's MOT History
Enter your reg plate to see the specific issues found on your car, plus a health score and running cost estimate.
Most Common Daihatsu Sirion MOT Issues
Ranked by how likely they are to affect your Daihatsu Sirion, with typical repair costs
Brakes
High likelihood£80 - £450
Typical repair cost
Common advisories:
Brake discs worn, brake pads thin, handbrake adjustment needed
Failure points:
Brake disc excessively worn, brake pipe corroded, brake efficiency below minimum
Suspension
High likelihood£150 - £600
Typical repair cost
Common advisories:
Suspension arm bush worn, shock absorber misting, spring corroded
Failure points:
Coil spring broken, ball joint excessive play, shock absorber leaking
Lights
High likelihood£15 - £200
Typical repair cost
Common advisories:
Headlamp aim slightly out, lens deteriorated
Failure points:
Headlamp not working, brake light not functioning, indicator failure
Tyres
High likelihood£50 - £300
Typical repair cost
Common advisories:
Tyre approaching legal limit, slight damage to sidewall
Failure points:
Tyre below minimum tread depth, tyre has a cut exposing ply
Exhaust & Emissions
High likelihood£80 - £800
Typical repair cost
Common advisories:
Exhaust mounting corroded, slight exhaust leak
Failure points:
Exhaust emissions exceed limits, catalytic converter efficiency low, DPF warning
Steering
High likelihood£100 - £500
Typical repair cost
Common advisories:
Track rod end has slight play, steering rack boot deteriorated
Failure points:
Steering rack leaking, track rod ball joint worn beyond limits
Body & Structure
High likelihood£200 - £1200
Typical repair cost
Common advisories:
Surface corrosion on subframe, slight body panel damage
Failure points:
Structural corrosion, body mounting corroded through, chassis weakness
Windscreen & Wipers
Lower likelihood£10 - £350
Typical repair cost
Common advisories:
Minor windscreen chip, wiper blade deteriorated
Failure points:
Windscreen crack in swept area, wiper does not clear windscreen
Is your specific car affected?
Enter your reg plate to check your car's individual MOT history, health score, and flag any issues.
Premium check (£4.99) includes stolen, finance, and write-off verification.
Daihatsu Sirion Reliability by Year
MOT pass rate for each model year, based on real test data
Daihatsu Sirion Running Costs
Want to know the full annual running costs for the Daihatsu Sirion? Including fuel, tax, insurance, and predicted repairs based on MOT history.
View Daihatsu Sirion Running CostsSave Money on Your Daihatsu Sirion
Exclusive deals and services picked for your Daihatsu Sirion
Compare car insurance
Could save you £200+ on insurance
Get quotes from top UK insurers in minutes
Compare quotes →Compare prices in 60 seconds
🚗Breakdown cover
Cover from under £4/month
RAC, AA, and Green Flag deals compared
Compare cover →Instant online quotes
✅Extended warranty
Plans from £15/month
Protect against unexpected repair bills
Get a quote →Cover starts immediately
🔧Book an MOT
Save up to 50% vs dealerships
Find the cheapest MOT near you
Find garages →Book online in minutes
Daihatsu Sirion FAQ
What are the most common Daihatsu Sirion problems?
The most common Daihatsu Sirion MOT problems are brakes, suspension, lights, tyres, exhaust & emissions, steering, body & structure issues. These are the areas most likely to cause advisories or failures during an MOT test, based on 10,921 real tests.
Is the Daihatsu Sirion reliable?
The Daihatsu Sirion has an average MOT pass rate of 73%, which is 9 points below the national average of 82%. This is about average reliability.
Which year Daihatsu Sirion is most reliable?
The 2010 Daihatsu Sirion is the most reliable year with a 81% MOT pass rate. Avoid the 1999 model year if reliability is your priority, as it has the lowest pass rate at 60%.
How much does it cost to fix common Daihatsu Sirion faults?
Repair costs vary by issue. Brake work on a Daihatsu Sirion typically costs £80-£450, suspension repairs cost £150-£600, and exhaust/emissions fixes cost £80-£800. Lighting and wiper fixes are usually under £200.
Check a Specific Daihatsu Sirion
Enter any reg plate to see the exact MOT history, defects found, health score, and running cost estimate for that specific car.
Other Daihatsu Models
Common problems pages for other Daihatsu models