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How much does a Catalytic Converter 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
Car2009 SEAT Leon Franchise Dealer Est.£182 - £202 Independent Garage Est.£133 - £147 ClickMechanic Est.£133 - £147 Saving26%
Car2006 Mercedes-Benz C-Class Franchise Dealer Est.£636 - £725 Independent Garage Est.£383 - £441 ClickMechanic Est.£385 - £444 Saving39%
Car2011 SEAT Leon Franchise Dealer Est.£179 - £198 Independent Garage Est.£130 - £144 ClickMechanic Est.£131 - £144 Saving27%
Car1999 Honda HR-V Franchise Dealer Est.£220 - £304 Independent Garage Est.£156 - £226 ClickMechanic Est.£157 - £227 Saving26%
Car1999 Volkswagen Sharan Franchise Dealer Est.£163 - £351 Independent Garage Est.£106 - £263 ClickMechanic Est.£107 - £264 Saving27%

Want to learn more about Catalytic Converter replacements?

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

What does a Catalytic Converter do?

The catalytic converter, also called ‘cat’ sits next to your engine and is the key car part of the exhaust system, responsible for reducing the toxic emissions your engine produces into less harmful pollutants. Through a chemical reaction, the toxic emissions of hydrocarbons, carbon monoxide, and nitrogen oxides are turned into less harmful gases before they get emitted via the exhaust.

The core of a catalytic converter is made of ceramic blocks which have a porous structure. These pores are coated with catalysts containing valuable metals platinum, rhodium and palladium, which work best when heated up, hence the location next to the engine. During a drive, the toxic exhaust gases passing through the heated pores, causing a chemical reaction and are broken down into less harmful substances.

How do you know there is something wrong with the Catalytic Converter?

Catalytic converters are built to have a long lifetime, however over time the pores can become clogged, or overheating can cause physical damage.
A damaged catalytic converter will emit more toxic pollution into the atmosphere. You'll know something might be wrong with your car's catalytic converter:

  • When dark smoke is coming from the exhaust
  • When the engine performance is significantly reduced
  • When fuel efficiency is decreasing
  • When you experience issues while accelerating
  • When the smell of sulfur (rotten eggs) is coming from your car
  • When the check engine light flashes up

What happens if I don’t replace a faulty Catalytic Converter?

If the catalytic converter stopped working as it should, your car will emit more toxic pollutants, likely above the legal limits. Cars which are passing exhaust fumes above these limits will fail their MOT.

A bad catalytic converter will certainly have an impact on other parts of your car, starting with the engine which is prevented from running freely. As a result, you will need to burn more and more fuel to power your engine appropriately up to a point where your car becomes undrivable.
Another impact of a bad catalytic converter can be overheating which causes damage to parts around it.

Catalytic Converter theft

Catalytic converters contain valuable and expensive metals, palladium and platinum, which makes them a target for theft. As the price for these metals increases the numbers of catalytic converter theft go up as well.
As part of the exhaust system, they are relatively easy to access, especially in taller vehicles which are further off the ground.

Catalytic converter theft not only leaves you with the cost of replacing it, but you will also need to take care of any other damages that are caused by the act of removal.

How to protect your Catalytic Converter from theft

There are ways to prevent the theft of your catalytic converter, mainly by making it harder to access and remove it. Below are a few suggestions on how to deter thieves or at least slow them down:

  • Parking closer to walls, other vehicles or close to the kerb, to make climbing under your car more difficult.
  • Marking the catalytic converter with an engraved serial number can allow easier tracing as well making it harder to sell
  • Welding the bolts if the converter is bolted on. This does not stop thieves but makes it harder to remove the converter using only a spanner. The downside to consider is that it not only makes it harder for thieves but also mechanics when they are working on your exhaust system.
  • Get a protective cover fitted to make it more difficult for thieves to remove the converter
  • Get a catalytic converter alarm which is set off when the catalytic converter is tempered with
  • Increased security measures, e.g. if possible park in a lockable garage, fencing, park in well-lit areas or CCTV

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 Catalytic converter, Catalytic converter, Catalytic converter and/or Catalytic converter

41 manufacturers for Catalytic Converter Replacement

Name Clickmechanic Click mechanic average Independent garage estimate Franchise dealer estimate

Alfa Romeo

Parts costs: £136.31 - £495.90

Labour time: 0-2 hours

# of quotes: 93

£506

£164 - £479

£224 - £641

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Audi

Parts costs: £150.75 - £570.15

Labour time: 0-2 hours

# of quotes: 596

£397

£201 - £563

£311 - £797

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BMW

Parts costs: £182.97 - £547.55

Labour time: 1-2 hours

# of quotes: 963

£457

£243 - £544

£394 - £802

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Chevrolet

Parts costs: £164.15 - £348.88

Labour time: 0-1 hours

# of quotes: 83

£297

£186 - £340

£240 - £447

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Chrysler

Parts costs: £221.74 - £433.44

Labour time: 0-1 hours

# of quotes: 74

£323

£253 - £403

£334 - £522

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Citroen

Parts costs: £114.23 - £310.73

Labour time: 0-2 hours

# of quotes: 823

£281

£163 - £319

£226 - £420

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Daewoo

Parts costs: £88.40 - £144.79

Labour time: 0-1 hours

# of quotes: 13

£160

£137 - £170

£204 - £243

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Daihatsu

Parts costs: £245.51 - £294.61

Labour time: 0-1 hours

# of quotes: 5

£289

£290 - £291

£383 - £385

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Dodge

Parts costs: £4,519.29 - £5,423.14

Labour time: 0-1 hours

# of quotes: 1

£4562

£4,568 - £4,568

£5,521 - £5,521

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Fiat

Parts costs: £178.10 - £702.71

Labour time: 0-2 hours

# of quotes: 480

£433

£217 - £666

£279 - £837

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Ford

Parts costs: £163.44 - £420.58

Labour time: 0-2 hours

# of quotes: 2278

£321

£213 - £446

£284 - £591

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Honda

Parts costs: £123.83 - £293.30

Labour time: 0-1 hours

# of quotes: 695

£247

£154 - £293

£206 - £388

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Hyundai

Parts costs: £168.95 - £375.30

Labour time: 0-1 hours

# of quotes: 126

£321

£193 - £362

£246 - £463

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Isuzu

Parts costs: £196.92 - £236.30

Labour time: 1-2 hours

# of quotes: 1

£289

£305 - £305

£453 - £453

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Jaguar

Parts costs: £234.58 - £413.55

Labour time: 0-1 hours

# of quotes: 109

£367

£272 - £397

£382 - £555

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Jeep

Parts costs: £686.36 - £1,946.75

Labour time: 0-1 hours

# of quotes: 2

£1209

£737 - £1,676

£930 - £2,061

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Kia

Parts costs: £170.01 - £519.16

Labour time: 0-1 hours

# of quotes: 107

£410

£195 - £482

£248 - £606

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Land Rover

Parts costs: £278.23 - £983.28

Labour time: 0-2 hours

# of quotes: 132

£535

£313 - £903

£419 - £1,189

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Lexus

Parts costs: £191.23 - £1,006.47

Labour time: 0-1 hours

# of quotes: 38

£500

£224 - £888

£318 - £1,137

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Mazda

Parts costs: £189.47 - £559.40

Labour time: 0-3 hours

# of quotes: 373

£530

£222 - £592

£291 - £805

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Mercedes-Benz

Parts costs: £210.86 - £590.01

Labour time: 1-3 hours

# of quotes: 359

£453

£266 - £606

£400 - £896

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MG

Parts costs: £120.80 - £217.95

Labour time: 0-1 hours

# of quotes: 58

£183

£150 - £231

£203 - £316

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MINI

Parts costs: £235.19 - £351.89

Labour time: 1-2 hours

# of quotes: 477

£345

£312 - £391

£493 - £621

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Mitsubishi

Parts costs: £175.63 - £723.30

Labour time: 0-1 hours

# of quotes: 60

£490

£212 - £652

£279 - £816

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Nissan

Parts costs: £190.73 - £541.43

Labour time: 0-1 hours

# of quotes: 264

£376

£234 - £504

£308 - £638

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Perodua

Parts costs: £126.38 - £151.66

Labour time: 0-1 hours

# of quotes: 7

£171

£175 - £175

£249 - £249

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Peugeot

Parts costs: £106.10 - £322.10

Labour time: 0-2 hours

# of quotes: 1613

£248

£131 - £325

£174 - £431

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Porsche

Parts costs: £1,260.25 - £2,113.03

Labour time: 1-2 hours

# of quotes: 14

£1467

£1,337 - £1,842

£1,664 - £2,275

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Proton

Parts costs: £205.14 - £246.17

Labour time: 0-1 hours

# of quotes: 2

£259

£246 - £252

£295 - £302

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Renault

Parts costs: £125.80 - £305.27

Labour time: 0-2 hours

# of quotes: 699

£305

£164 - £363

£219 - £500

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Rover

Parts costs: £82.55 - £181.73

Labour time: 0-1 hours

# of quotes: 72

£155

£109 - £201

£151 - £280

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Saab

Parts costs: £141.47 - £285.72

Labour time: 0-2 hours

# of quotes: 94

£294

£188 - £309

£262 - £427

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SEAT

Parts costs: £176.20 - £348.63

Labour time: 0-2 hours

# of quotes: 307

£340

£225 - £361

£304 - £483

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Skoda

Parts costs: £48.80 - £427.83

Labour time: 0-2 hours

# of quotes: 121

£353

£98 - £417

£151 - £541

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Smart

Parts costs: £224.88 - £818.54

Labour time: 0-1 hours

# of quotes: 22

£520

£269 - £731

£357 - £916

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Subaru

Parts costs: £82.27 - £292.49

Labour time: 0-1 hours

# of quotes: 30

£229

£103 - £293

£138 - £385

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Suzuki

Parts costs: £158.30 - £575.99

Labour time: 0-1 hours

# of quotes: 131

£349

£186 - £529

£234 - £656

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Toyota

Parts costs: £178.42 - £377.83

Labour time: 0-2 hours

# of quotes: 514

£323

£222 - £371

£298 - £485

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Vauxhall

Parts costs: £179.27 - £432.09

Labour time: 0-2 hours

# of quotes: 1853

£344

£228 - £436

£302 - £567

Get exact price

Volkswagen

Parts costs: £132.47 - £307.55

Labour time: 0-2 hours

# of quotes: 1352

£310

£182 - £327

£267 - £463

Get exact price

Volvo

Parts costs: £182.39 - £709.53

Labour time: 0-2 hours

# of quotes: 130

£438

£231 - £657

£331 - £859

Get exact price

Prices could not be created for 39 models. Show ∨

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

Estimates on repair costs, such as the above results for a catalytic converter 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 Catalytic Converter 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.

£295.70

Catalytic converter replacement - right

Mini Countryman Cooper D 1.6L 2012
Merthyr Tydfil
£292.70

Catalytic converter replacement - right

Mazda MX 5 2.0L 2009 13
Berkshire
£349.96

Catalytic converter replacement

Mini Mini One 1.6L 2005
White City
£369.03

Catalytic converter (both) replacement

Renault Megane II dCi 1.5L 2003
Aberfeldy