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How much does a Glow Plugs replacement cost?

Labour times and part prices vary depending on the particular vehicle, but to give you an idea here are some examples.

Car Franchise Dealer estimate Independent Garage estimate ClickMechanic ClickMechanic Saving
Car2006 BMW X3 Franchise Dealer Est.£275 - £338 Independent Garage Est.£125 - £178 ClickMechanic Est.£126 - £179 Saving50%
Car2010 Fiat Punto Evo Franchise Dealer Est.£109 - £162 Independent Garage Est.£82 - £126 ClickMechanic Est.£82 - £126 Saving22%
Car2002 Volkswagen Polo Franchise Dealer Est.£171 - £198 Independent Garage Est.£96 - £119 ClickMechanic Est.£97 - £120 Saving41%
Car2004 Ford Focus C-MAX Franchise Dealer Est.£219 - £267 Independent Garage Est.£138 - £179 ClickMechanic Est.£140 - £180 Saving34%
Car2005 Toyota Avensis Franchise Dealer Est.£164 - £185 Independent Garage Est.£125 - £141 ClickMechanic Est.£125 - £142 Saving23%

Want to learn more about Glow Plugs replacements?

Read our short guide with information on costs, symptoms and more.

What does a glow plug do?

Glow plugs are fitted to diesel cars only. Similar to spark plugs in petrol cars, they ignite the air-fuel mixture in the engine. Instead of building to a sudden spark, the glow plugs slowly heat up until they are at a point where they can naturally combust the air-fuel mixture in each cylinder. This allows the engine to work more efficiently and results in lower carbon emissions.

How do you know there is something wrong with the glow plugs?

Glow plugs start your car and remain hot to keep the engine working. A problem with the glow plugs will usually mean you can't start your vehicle, or the engine is less efficient. This depends on the number of cylinders affected, but you will notice a loss in miles per gallon and higher emissions.

When should you consider a glow plugs replacement?

Glow plugs, like spark plugs, should be maintained according to the manufacturer recommended service schedule. This will mean that the glow plugs are usually replaced every few years, and it will help keep the rest of your vehicle running just as smoothly.

What happens during a glow plugs replacement?

A mechanic will come to remove and replace the old glow plugs. The operation of the engine will be checked and if required the car will be taken for a test drive, to check if any adjustments are needed.

What happens if I don’t replace glow plugs?

Because they are subjected to great extremes of temperature, glow plugs often need to work very hard to generate enough heat to fire up your engine.
The biggest enemy which prevents glow plugs from working efficiently is the inevitable build-up of carbon (soot) around them which is a by-product of the fuel ignition process.

If you don’t replace your glow plugs, you might find that your engine starts to misfire, is more difficult to start in the cold, and produces more smoke from the exhaust.

Can I replace my own glow plugs?

Replacing your glow plugs is not a big task but you still need to be mechanically skilled to carry it out.

You will need the right tools, and may also have to apply quite a lot of force making it easy to get the job wrong and cause damage to either the plugs or the mountings they screw into.

The biggest concern when replacing glow plugs is to ensure you use just enough force to unscrew them. Due to constant heating and cooling of surrounding parts, glow plugs can become brittle and may shatter if too much force is used. Once the fragments of the ceramic get into other parts like the cylinder, you additionally need to disassemble it to clear it.

Always follow the manufacturer’s instructions when changing the glow plug, especially concerning the amount of torque you should use to tighten them in their housing. Screwing them in too tightly is likely to damage the ceramic parts used as a heat conductor.

How common is a glow plugs replacement?

Glow plugs typically last for up to 100,000 miles. But like lots of things in your car, the more you use them and the more harshly they are treated, the sooner they will wear out.

If you regularly try to start your car before they have reached the right temperature, you can put extra wear on your glow plugs.
Your car’s servicing schedule will recommend the intervals at which it should need glow plug replacement. And while there are many instances of the plugs lasting much longer than these recommendations, the suddenness with which they can fail means you could easily find yourself stranded.

What are common glow plug brands on the market?

Some glow plug brands which are most often recommended are Beru, Champion, NGK, Monark, and Denso.

Are there any differences between the glow plugs used in old and new vehicles, or between petrol, diesel or electric vehicles?

Glow plugs are only found in diesel vehicles, but there are different types of plug available depending on the size of your engine.
They vary depending on the amount of heat which is needed to get the compressed air inside the engine up to the right temperature for it to cause the fuel to ignite.

How to extend the lifetime of your glow plugs?

To keep your glow plugs clean, regularly check the area around your engine’s glow plug terminals, and clear away any soot or debris, using a soft-bristled brush.

This is the main cause of the need for early glow plug replacement because the longer you go between clearing off the build-up, the more baked-on it will get by all the heat the plugs generate.

If you regularly make short journeys in your car and are re-starting the engine at regular intervals, this too will have a detrimental effect on the life of your glow plugs. If your car only gets short runs, make a point of taking it for an extended drive at least once a week to warm the engine up thoroughly.
Very cold weather is the enemy of all diesel engines. If you live in areas with harsher weather and frost during winter, keeping your car under cover or parked in a garage can also help your glow plugs last longer.

Want to know how much you'd pay at a franchise dealer or independent garage?

We use industry standard data & millions of data points so you know what you should be paying

These estimates may include Glow plug

44 manufacturers for Glow Plugs Replacement

Name Clickmechanic Click mechanic average Independent garage estimate Franchise dealer estimate

Alfa Romeo

Parts costs: £95.96 - £151.52

Labour time: 0-1 hours

# of quotes: 214

£155

£126 - £175

£182 - £260

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Audi

Parts costs: £85.96 - £148.49

Labour time: 0-1 hours

# of quotes: 1485

£158

£124 - £173

£201 - £275

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Bentley

Parts costs: £3,581.02 - £4,297.23

Labour time: 1-2 hours

# of quotes: 2

£3645

£3,639 - £3,639

£4,412 - £4,412

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BMW

Parts costs: £107.33 - £204.55

Labour time: 1-2 hours

# of quotes: 3589

£213

£175 - £258

£327 - £458

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Chevrolet

Parts costs: £91.96 - £125.09

Labour time: 0-2 hours

# of quotes: 26

£163

£136 - £197

£197 - £310

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Chrysler

Parts costs: £127.17 - £179.04

Labour time: 0-1 hours

# of quotes: 331

£176

£144 - £198

£187 - £284

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Citroen

Parts costs: £69.75 - £103.02

Labour time: 0-2 hours

# of quotes: 1487

£151

£119 - £168

£173 - £251

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Dacia

Parts costs: £97.22 - £116.66

Labour time: 0-1 hours

# of quotes: 4

£130

£119 - £146

£160 - £214

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Daewoo

Parts costs: £59.01 - £70.81

Labour time: 1-2 hours

# of quotes: 2

£111

£119 - £119

£190 - £190

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Dodge

Parts costs: £102.27 - £202.94

Labour time: 0-2 hours

# of quotes: 14

£170

£151 - £229

£221 - £322

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Fiat

Parts costs: £79.41 - £162.29

Labour time: 0-2 hours

# of quotes: 1235

£166

£123 - £195

£168 - £262

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Ford

Parts costs: £73.22 - £109.47

Labour time: 0-2 hours

# of quotes: 3812

£141

£122 - £168

£175 - £245

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Honda

Parts costs: £160.38 - £213.80

Labour time: 0-1 hours

# of quotes: 147

£204

£177 - £227

£224 - £308

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Hyundai

Parts costs: £130.95 - £212.16

Labour time: 0-2 hours

# of quotes: 172

£225

£180 - £248

£245 - £339

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Isuzu

Parts costs: £157.19 - £341.43

Labour time: 0-1 hours

# of quotes: 19

£257

£202 - £334

£278 - £439

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Iveco

Parts costs: £122.48 - £156.07

Labour time: 0-1 hours

# of quotes: 12

£175

£155 - £179

£212 - £254

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Jaguar

Parts costs: £74.48 - £115.14

Labour time: 0-1 hours

# of quotes: 279

£148

£124 - £150

£221 - £261

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Jeep

Parts costs: £107.56 - £174.26

Labour time: 0-2 hours

# of quotes: 210

£184

£157 - £249

£234 - £395

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Kia

Parts costs: £143.96 - £212.16

Labour time: 0-2 hours

# of quotes: 234

£216

£193 - £248

£259 - £337

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Land Rover

Parts costs: £90.15 - £150.01

Labour time: 0-2 hours

# of quotes: 1211

£185

£139 - £212

£229 - £365

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LDV

Parts costs: £145.22 - £190.58

Labour time: 0-1 hours

# of quotes: 88

£189

£193 - £213

£269 - £299

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Lexus

Parts costs: £140.87 - £187.60

Labour time: 0-1 hours

# of quotes: 4

£196

£183 - £205

£282 - £318

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Mazda

Parts costs: £72.97 - £237.99

Labour time: 0-1 hours

# of quotes: 117

£171

£95 - £247

£130 - £334

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Mercedes-Benz

Parts costs: £61.16 - £213.14

Labour time: 0-2 hours

# of quotes: 2150

£200

£110 - £254

£205 - £417

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MG

Parts costs: £94.36 - £183.36

Labour time: 1-4 hours

# of quotes: 14

£215

£149 - £349

£222 - £575

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MINI

Parts costs: £78.34 - £235.78

Labour time: 0-1 hours

# of quotes: 130

£183

£126 - £246

£225 - £371

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Mitsubishi

Parts costs: £95.52 - £156.07

Labour time: 0-2 hours

# of quotes: 173

£190

£145 - £201

£206 - £288

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Nissan

Parts costs: £79.53 - £149.41

Labour time: 0-1 hours

# of quotes: 687

£153

£107 - £174

£146 - £240

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Peugeot

Parts costs: £70.69 - £109.08

Labour time: 0-2 hours

# of quotes: 1176

£156

£120 - £195

£179 - £308

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Peugeot Talbot

Parts costs: £79.53 - £95.44

Labour time: 0-1 hours

# of quotes: 4

£103

£107 - £107

£148 - £148

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Porsche

Parts costs: £128.94 - £703.09

Labour time: 0-1 hours

# of quotes: 13

£338

£156 - £635

£208 - £801

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Renault

Parts costs: £71.25 - £139.40

Labour time: 0-1 hours

# of quotes: 1411

£135

£99 - £165

£134 - £227

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Rover

Parts costs: £56.86 - £115.14

Labour time: 1-4 hours

# of quotes: 22

£190

£111 - £276

£177 - £474

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Saab

Parts costs: £103.03 - £139.40

Labour time: 0-1 hours

# of quotes: 257

£148

£136 - £165

£189 - £237

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SEAT

Parts costs: £85.85 - £133.33

Labour time: 0-1 hours

# of quotes: 479

£142

£124 - £160

£175 - £226

Get exact price

Skoda

Parts costs: £85.85 - £131.82

Labour time: 0-1 hours

# of quotes: 296

£141

£113 - £159

£154 - £224

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Smart

Parts costs: £90.36 - £171.31

Labour time: 0-1 hours

# of quotes: 24

£164

£139 - £192

£206 - £269

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Ssangyong

Parts costs: £117.93 - £157.59

Labour time: 0-1 hours

# of quotes: 108

£167

£145 - £180

£196 - £255

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Subaru

Parts costs: £142.99 - £348.64

Labour time: 0-1 hours

# of quotes: 10

£265

£185 - £340

£250 - £441

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Suzuki

Parts costs: £77.76 - £121.06

Labour time: 0-1 hours

# of quotes: 71

£142

£113 - £155

£151 - £210

Get exact price

Toyota

Parts costs: £121.27 - £186.39

Labour time: 0-1 hours

# of quotes: 371

£186

£149 - £204

£198 - £281

Get exact price

Vauxhall

Parts costs: £92.16 - £166.16

Labour time: 0-1 hours

# of quotes: 4935

£210

£136 - £188

£187 - £253

Get exact price

Volkswagen

Parts costs: £77.00 - £133.95

Labour time: 0-1 hours

# of quotes: 2521

£148

£115 - £161

£176 - £242

Get exact price

Volvo

Parts costs: £83.32 - £150.01

Labour time: 0-2 hours

# of quotes: 457

£161

£121 - £218

£187 - £362

Get exact price

Prices could not be created for 37 models. Show ∨

  • Microcar
  • Metrocab
  • Hummer
  • Reva
  • Asia
  • TVR
  • Ferrari
  • Morgan
  • Buick
  • Lamborghini
  • Pontiac
  • Carbodies
  • DS
  • Mitsubishi Fuso
  • Moskvich
  • Cadillac
  • Ford US
  • Aixam
  • Austin
  • Daimler
  • FSO
  • Maybach
  • Rolls-Royce
  • Santana
  • Tata
  • Great Wall
  • Piaggio
  • Perodua
  • Infiniti
  • Aston Martin
  • Daihatsu
  • Lada
  • Lancia
  • Lotus
  • Maserati
  • Proton
  • London Taxi's International

Estimates on repair costs, such as the above results for a glow plugs replacement, are created by combining data from multiple third-party sources. The actual cost of using your local repair providers may be outside of the estimated range. We provide estimates on repair costs for information only and accept no liability for any inaccuracies or errors. If you think an estimate is incorrect, please contact us to let us know.

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Recent Glow Plugs replacement quotes

These recent quotes were taken from our quote engine which uses third-party industry standard data on repair times, along with a live parts retailer, and a regional labour rate to build an accurate free quote. We are constantly improving our quote engine, so please let us know if a price seems incorrect.

£164.44

Pre-heat/glow plugs (all) replacement

Ford Focus C MAX Ti VCT 1.6L 2005
Crayford
£153.34

Pre-heat/glow plugs (all) replacement

Volvo S60 D5 2.4L 2011
Sheerness
£138.04

Pre-heat/glow plugs (all) replacement

Skoda Fabia II 12V 1.2L 2009 13
Stockport
£153.48

Pre-heat/glow plugs (all) replacement

Suzuki SX4 1.6L 2012
Kington