OBD Guide
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P06C8

Cylinder 4 Glow Plug Incorrect

P06C8 is an OBD-II diagnostic trouble code meaning: Cylinder 4 Glow Plug Incorrect. Common causes: installing a glow plug of an incompatible type or with a different resistance, using a non-original part with excellent electrical performance. Estimated repair cost: $6–28.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–28 (est.)

Symptoms

  • Check Engine Light Is On
  • Possibly difficult cold starting of the engine
  • Incorrect heating of the combustion chamber of cylinder 4
  • Some white smoke when starting in cold weather
  • Unstable engine operation when warming up

Causes

  • Installing a glow plug of an incompatible type or with a different resistance
  • Using a non-original part with excellent electrical performance
  • Degradation of an installed spark plug with a change in resistance to inappropriate values
  • The article numbers were mixed up when purchasing a candle.
  • Installing a spark plug from a different engine model

How to Fix

  1. Read error codes and determine what type of glow plug is required for a given engine
  2. Check the markings of the installed spark plug with the manufacturer’s catalog
  3. Measure the resistance of the cylinder 4 spark plug and compare it with the standard for the correct type.
  4. Purchase and install a glow plug of the exact part number for a given engine
  5. Tighten the spark plug to the required torque according to the technical manual
  6. Reset error codes and check for errors

Related codes

P06C5P06B9P0671P0672P0673

Error P06C8 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P06C8 code mean?

P06C8 is an OBD-II diagnostic trouble code that indicates: Cylinder 4 Glow Plug Incorrect

What causes a P06C8 error code?

The most common causes of P06C8 include: Installing a glow plug of an incompatible type or with a different resistance; Using a non-original part with excellent electrical performance; Degradation of an installed spark plug with a change in resistance to inappropriate values; The article numbers were mixed up when purchasing a candle..

How do I fix a P06C8 diagnostic trouble code?

To fix P06C8: Read error codes and determine what type of glow plug is required for a given engine. Check the markings of the installed spark plug with the manufacturer’s catalog. Measure the resistance of the cylinder 4 spark plug and compare it with the standard for the correct type.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P06C8?

Yes, but get it checked soon

How much does it cost to fix P06C8?

The estimated repair cost for P06C8 is $6–28. Actual cost depends on your vehicle, location, and labor rates.

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