Replacing a single ignition coil in Europe costs between EUR 30 and EUR 220, including parts and labour. A full set of four coil-on-plug units runs EUR 120 to EUR 600 fitted. Modern petrol vehicles use one coil per cylinder (coil-on-plug or COP design); older cars use a single coil pack feeding all cylinders. Bosch and NGK aftermarket coils are EUR 15 to EUR 80 each; OEM dealer coils are EUR 40 to EUR 180 each. Labour is 0.2 to 0.5 hours per coil. A failed coil usually shows as a single-cylinder misfire (P0301 through P0308) with the engine running rough and a flashing check engine light under load.
Typical EU price€30 - €600Single coil at the low end. Set of four to six OEM premium coils at the high end.
Parts cost
Aftermarket (EU type-approved): €15 - €80. Common brands: Bosch, NGK, Beru, Denso, Delphi.
OEM: €40 - €180.
Bosch and Beru are the OE suppliers for VW, Audi, BMW and Mercedes coils. NGK and Denso dominate Japanese fitments. Aftermarket Bosch coils are typically the same physical part as the dealer OEM coil at half the price. Avoid unbranded eBay coils on turbocharged engines - the coil energy is insufficient to ignite the boosted mixture cleanly and misfires return within months.
Labor cost
Range: €15 - €240. Typical labor time: 0.2 - 4 hours.
Independent workshop rate: €60-90/hr. Dealer rate: €120-180/hr.
Coil-on-plug units are usually held by a single Torx bolt with a wiring connector that unclips. A single coil takes 10 to 15 minutes; a set of four takes 45 to 60 minutes. V6 and V8 engines with rear-bank coils under the intake manifold are significantly more labour (2 to 4 hours for the rear bank). Always service spark plugs at the same time - the labour overlap is substantial.
Can you DIY this repair?
Difficulty: easy. On most modern inline-four engines, ignition coils are the easiest ignition service item. Tools needed: T30 or T40 Torx, sometimes a 10 mm socket. Disconnect the battery, pop the engine cover, unclip the coil connectors, unbolt and lift out. Replace one coil at a time to avoid mixing up cylinder positions. Save EUR 60 to EUR 200 versus an indie shop on a four-coil set. The classic mistake: forgetting to seat the connector fully - a half-clicked connector causes intermittent misfires on the first drive.
Warning signs you need this repair
- Check engine light, often flashing on hard acceleration (active misfire)
- Single-cylinder misfire code (P0301 through P0308) stored
- Rough idle that smooths out at higher RPM (failing coil cuts out only at certain loads)
- Loss of power, especially under wide-open throttle or uphill
- Hesitation or stumble on acceleration
- Sulphur or rotten-egg smell from exhaust (unburned fuel reaching the cat)
- Reduced fuel economy by 5 to 15 percent
- Hard starting when the engine is hot (heat-sensitive coil failure pattern)
When to replace
Replace the failed coil when (1) a single-cylinder misfire code is stored and swapping the coil to another cylinder moves the code with it (definitive proof), (2) the engine has reached 120,000 to 180,000 km and you are servicing spark plugs - replacing all coils preventatively makes sense given the labour overlap, or (3) the engine is turbocharged and has experienced repeated short trips - turbo heat shortens coil life significantly. Never ignore a flashing check engine light - that signals an active misfire that dumps unburned fuel into the cat. Sustained driving with a misfire kills the catalytic converter within hours under heavy load.
When you can keep driving
You can drive briefly with a steady (non-flashing) check engine light and a single misfire code, just enough to get the car off the road or to a shop within a day. Sustained driving on a misfire kills the catalytic converter (turning a EUR 50 coil into a EUR 800 cat replacement). If the check engine light is flashing, pull over and arrange a tow - do not continue driving.
Diagnosis before replacing
- Read the exact code with a scan tool. A single P0301-P0308 code identifies the affected cylinder. P0300 (random misfire) without a cylinder-specific code points to a fuel system or vacuum issue, not a coil
- Swap the failed-cylinder coil with a known-good cylinder coil and clear codes. If the misfire follows the coil, replace it. If the misfire stays at the original cylinder, the issue is the spark plug, injector or compression
- Inspect the spark plug at the affected cylinder. A fouled, oil-soaked or excessively gapped plug causes the same symptoms as a failed coil at a fraction of the cost
- Check fuel injector function with a noid light or scope - a clogged or leaking injector produces misfires that look identical to coil failure
- Run a compression test on the affected cylinder if the symptom persists after coil and plug replacement. Sub-100 PSI compression points to mechanical failure, not ignition
- On turbocharged engines, check boost pressure and look for intake leaks - misfires under load can be caused by overboost or intake leaks rather than ignition components
Toyota Camry
2007-2024
Toyota Camry coils are remarkably long-lived - failures usually only appear past 200,000 km. Use Denso or NGK aftermarket. The V6 (2GR-FE) rear bank coils are partially obscured by the intake plenum, adding labour. The 2.5L 2AR-FE is genuinely DIY-friendly: 15 minutes per coil.
Parts: €30 - €90
Labor: €20 - €80
Honda Civic
2006-2024
Honda Civic R18A coils are well-documented for 150,000 to 200,000 km service life. The 1.5L turbo L15B is more sensitive to oil contamination from PCV blow-by - inspect coil boots for oil during service. Aftermarket NGK and Denso are equivalent to OE. Genuinely easy DIY.
Parts: €25 - €80
Labor: €20 - €70
Volkswagen Golf
2005-2024
Golf 1.4 TSI, 1.8 TSI and 2.0 TSI all use Bosch or Beru coil-on-plug. The EA888 engine has three coil generations - confirm the part number before ordering, as the connector pinout differs. Turbocharged TSI engines fail coils more frequently than naturally-aspirated equivalents, often around 80,000 to 120,000 km. The Mk5 Mk6 4-coil set is one of the most common ignition jobs on the European market - DIY in 30 minutes, EUR 120 to EUR 200 in parts.
Parts: €40 - €140
Labor: €30 - €100
BMW 3 Series
2006-2024
BMW 3 Series N52 (straight-six, 6 coils) has a well-known cylinder-6 coil failure pattern - the rearmost coil runs hottest and fails earliest, typically at 100,000 to 140,000 km. Symptom: P0306 misfire that sometimes only appears in warm weather. N20 and N26 turbo-fours fail coils more frequently than N52 due to boost-induced heat cycling - aftermarket Bosch lasts roughly half as long as OE BMW. F30 onwards uses Bosch coils with longer service intervals. Always replace plugs at the same time on N54 and N55 due to access labour.
Parts: €60 - €220
Labor: €40 - €150
Ford Focus
2008-2024
Ford Focus 1.0 EcoBoost and 1.5 EcoBoost use Bosch coil-on-plug units that have a known short service life on the 1.0 EcoBoost (60,000 to 100,000 km typical). The 2.0 Duratec is more conventional and lasts 150,000+ km. The 1.0 EcoBoost three-cylinder is sensitive to coolant intrusion into the spark plug wells via the head gasket - inspect for moisture during any ignition service.
Parts: €30 - €100
Labor: €20 - €70
Mechanic recommends replacing all coils when only one is faulty
On vehicles under 100,000 km, replace only the confirmed failed coil. On vehicles past 150,000 km, replacing all coils preventatively is defensible because the labour overlap is significant and the remaining coils are statistically likely to fail soon. Ask the shop to justify their recommendation.
Spark plugs not replaced at the same time
If the engine is past 50,000 km on its current plugs, replace them along with the coil. The labour is already done (cover removed, coils out). Skipping this is a false economy that costs another half-hour of labour on a return visit.
OEM-only quote when Bosch aftermarket is identical
Bosch and Beru supply OE coils to VW, Audi, BMW, Mercedes and most other European brands. The aftermarket part number is usually identical to the dealer OEM at half the price. Demand the Bosch part unless under manufacturer warranty.
Unbranded coils fitted on a turbocharged engine
Unbranded eBay or AliExpress coils are noticeably weaker. On naturally-aspirated engines they often work for 50,000 km. On turbocharged engines (TSI, EcoBoost, all BMW turbos) they cause repeating misfires under boost within months because the spark energy is insufficient to ignite the dense charge. Spend EUR 40 on Bosch, not EUR 8 on unbranded.
Germany
TÜV does not specifically check ignition components but a stored misfire code triggers a check engine light and fails inspection. Bosch is widely available through Bosch Service, kfzteile24.de and autodoc.de at competitive prices. ATU and Pit Stop chains charge EUR 40 to EUR 80 per coil fitted as a quick service.
Poland
Aftermarket Bosch and Beru coils are 25 to 30 percent below EU average through allegro.pl, iParts.pl and intercars.pl. A set of four Bosch coils for a Golf or Octavia is regularly available for PLN 280 to PLN 400 (EUR 65 to EUR 95). Polish workshops typically charge PLN 30 to PLN 50 per coil fitted (EUR 7 to EUR 12).
Lithuania
Imported German used cars (especially diesels swapped to petrol turbos) often arrive with a marginal coil set. Pre-purchase inspection should include a brief flat-throttle test for misfire counters - any non-zero misfire count is a red flag. Techninė apžiūra (TA) fails any vehicle with active misfire codes.
United Kingdom
MOT does not specifically check coils but a check engine light fails the test regardless of cause. Bosch, NGK and Denso widely stocked at Halfords, Eurocarparts and GSF. UK MOT centres regularly fit aftermarket coils as a quick service item alongside plug replacement.
Do I need to replace all four coils at once?
Not necessarily. On vehicles under 100,000 km, replace only the failed coil identified by the cylinder-specific code (P0301 through P0308). On vehicles past 150,000 km, replacing all coils preventatively is defensible because the labour overlap is significant and the unfailed coils are statistically likely to fail within the next 30,000 km. Replace spark plugs at the same time.
How long do ignition coils last?
Naturally-aspirated petrol engines typically get 150,000 to 200,000 km from a set of coils. Turbocharged engines (TSI, EcoBoost, BMW N20, N54, N55) see significantly shorter life - often 80,000 to 120,000 km - because boost-induced heat cycling stresses the coil. Short-trip city driving accelerates failure on all engine types.
Can I drive with a misfire?
Only briefly. A steady (non-flashing) check engine light with a single misfire code is safe for a short drive to a shop within a day. A flashing check engine light indicates an active misfire that is dumping unburned fuel into the catalytic converter - this kills the cat within hours of sustained driving under load. Pull over and arrange a tow if the light is flashing.
What is the difference between a coil pack and coil-on-plug?
Coil packs are single units feeding spark via plug leads to multiple cylinders - common on cars built before 2005. Coil-on-plug (COP) puts one small coil directly on top of each spark plug - standard on all modern vehicles. COP designs allow more precise ignition timing per cylinder and identify failed cylinders directly via OBD2. Service costs are similar overall.
Why do BMW coils fail more often than other brands?
BMW's N52 straight-six runs the rearmost coil (cylinder 6) hottest because it sits closest to the firewall with the least airflow - this is a documented failure pattern. The N20 and N26 turbocharged four-cylinders fail coils more often due to boost-induced heat cycling. Solutions: replace with OE BMW (Bosch or Beru) rather than cheap aftermarket on turbo engines, and replace all six coils together at 120,000 km on the N52.
Will an aftermarket coil pass TÜV or ITV?
Yes, provided no fault code is active and the engine runs cleanly through inspection. Reputable brands (Bosch, NGK, Beru, Denso, Delphi) are mechanically and electrically equivalent to OE. Unbranded coils from internet marketplaces often cause intermittent misfires on turbocharged engines, leaving you stuck in a code-clear/code-return cycle right before an inspection.
How do I know it is the coil and not the spark plug?
Swap-test. Move the failed-cylinder coil to a known-good cylinder, then clear the codes and drive. If the misfire follows the coil to the new cylinder, the coil is bad. If the misfire stays at the original cylinder, the issue is the spark plug, injector or compression on that cylinder. The swap test costs nothing and is the single most reliable way to confirm coil failure.
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