Repair Services

04E 905 612C – Spark Plug (Priced Each)

Bosch platinum spark plug sold individually for select Volkswagen and Audi  applications. Designed for dependable ignition performance.

$16.85

  • Description
  • Additional information
  • Fits These Cars

Description

The Bosch Platinum Spark Plug is sold individually and is designed to create the electrical spark required to ignite the air-fuel mixture inside each cylinder. Reliable spark delivery supports smooth engine starting, stable idle quality, efficient combustion, and responsive acceleration.

This plug uses a platinum center electrode that is heat-fused into an extended insulator. The design helps the firing end reach its self-cleaning operating temperature quickly after startup, reducing the buildup of normal combustion deposits.

Why It Matters

Spark plugs operate under high cylinder pressure, extreme heat, and repeated ignition voltage. Over time, normal electrode wear and deposits can increase the voltage required to create a spark. When spark quality becomes inconsistent, engine performance and combustion efficiency may be affected.

Replacing spark plugs at the recommended maintenance interval supports dependable ignition performance. Servicing the full set at the same time helps maintain consistent combustion across all cylinders.

Signs of Failure

Inspect the ignition system if you notice:

  • Extended cranking or difficult starting.

  • Rough, unstable, or uneven idle.

  • Hesitation during acceleration.

  • Reduced throttle response.

  • Decreased fuel economy.

  • Engine misfires or a check-engine light.

  • Visible deposits, worn electrodes, or damaged ceramic insulators.

Key Features

  • OE Part Number: 04E 905 612C

  • Brand: Bosch

  • Sale Unit: Priced and sold individually.

  • Electrode Material: Platinum center electrode.

  • Function: Produces ignition spark for gasoline-engine combustion.

  • Design Benefit: Extended insulator design supports rapid warm-up of the firing end.

  • Service Purpose: Replaces worn or contaminated spark plugs during scheduled ignition maintenance.

Service Notes

Always verify fitment by VIN before ordering. Confirm the required number of spark plugs for the engine before placing an order. For consistent ignition performance, replace all plugs as a matching set during the same service interval.

Cross Reference Numbers

  • 04E 905 612C

  • Bosch 0 241 145 515

Additional information

Weight .10 lbs
Dimensions 3.5 × 1 × 1 in
Mfg Part #

04E905612C

Year Make Model Engine Notes
2019-2021 Volkswagen Golf 1.4L
2013-2021 Volkswagen Jetta 1.4L
2019 Volkswagen Golf SportWagen 1.4L
Audi A3 8V 1.4 e-tron Use vehicle selector to confirm fitment
Volkswagen Golf VII Facelift 1.4T Use vehicle selector to confirm fitment
Volkswagen Jetta VI 1.4T Use vehicle selector to confirm fitment
Volkswagen Jetta VI 1.4T Hybrid Use vehicle selector to confirm fitment
Volkswagen Jetta VII 1.4T Use vehicle selector to confirm fitment