MOT Testing
Car Batteries
Wheels & Tyres
Exhausts
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Diagnostics
Air Con
Engine Repairs
Suspension
MOT Testing
Car Batteries
Wheels & Tyres
Exhausts
Brakes
Oil & Fluids
Diagnostics
Air Con
Engine Repairs
Suspension
MOT Testing
Car Batteries
Wheels & Tyres
Exhausts
Brakes
Oil & Fluids
Diagnostics
Air Con
Engine Repairs
Suspension

Ignition System Repairs in Winchmore Hill

Mechanic replacing spark plugs on a car engine
Ignition Specialists N21

Ignition System Repairs in Winchmore Hill

Engine misfires, rough running, poor fuel economy, or a car that won't start? We diagnose and repair all ignition system faults on petrol and diesel vehicles.

MisfireDiagnosis
Petrol& Diesel
WrittenQuote Before Work
N21Local Garage
About This Service

Ignition System Repairs in N21

A faulty ignition system is one of the most common causes of engine misfires, poor performance, and increased fuel consumption. At N21 MOT & Servicing, we use professional diagnostic equipment to identify which cylinder is misfiring and trace the fault to its root cause — whether that's a worn spark plug, a failed ignition coil, or a faulty crankshaft sensor. We give you a clear quote and use quality parts.

From £30· Winchmore Hill, N21

Why Choose N21 MOT & Servicing?

  • Professional diagnostic equipment used on every job
  • Written quote provided before any work begins
  • Quality OE-equivalent parts as standard
  • All makes and models catered for
  • Honest advice — we only recommend what you need
  • Free MOT retest when we carry out the repairs
Full Service List

What We Cover

If you don't see your specific fault listed, call us — if we can fix it, we will.

Spark Plugs & Leads

  • Spark plug replacement
  • Ignition lead replacement
  • Ignition coil replacement
  • Ignition coil pack replacement
  • Ignition module repair
  • Distributor repair

Ignition Sensors

  • Crankshaft position sensor replacement
  • Camshaft position sensor replacement
  • Engine speed sensor replacement
  • Knock sensor replacement

Ignition Diagnosis

  • Ignition timing diagnosis
  • Misfire diagnosis
  • Engine no-start diagnosis
  • Ignition switch repair

Diesel Glow Plugs

  • Glow plug replacement
  • Glow plug control module replacement
  • Preheating system repair
FAQs

Common Questions

Ready to Book?

Book Your Repair Today

Call us or send an enquiry and we'll get back to you promptly. No pressure, no jargon — just your local garage in Winchmore Hill.

Address

Winchmore Hill Road, London N21 1QP