• Bosch 0221504029 Original Equipment Ignition Coil
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Bosch

Bosch 0221504029 Original Equipment Ignition Coil

Bosch 0221504029 Original Equipment Ignition Coil

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✔ Bosch 0221504029 Original Equipment Ignition Coil — Single
✔ Fitment: Select BMW models with M52, M54, M62, S52, S62, and M73 engines (3 Series, 5 Series, 7 Series, 8 Series, X5, Z3, Z8)
✔ Direct replacement for factory ignition coil — no modifications required
✔ Manufactured to OE specifications — ensures reliable voltage for smooth engine performance
✔ Pencil Coil design — compact coil-on-plug type with 3-pin connector
✔ Genuine Bosch quality — trusted OEM supplier to BMW

 

Bosch 0221504029 Original Equipment Ignition Coil — for Select BMW Models

Engine misfires, rough idling, loss of power, poor fuel economy, or a check engine light with cylinder misfire codes (P0300–P0312) — these are common signs that your ignition coil may be failing. The ignition coil converts low battery voltage into the high voltage needed to create an electric spark at the spark plug, igniting the air-fuel mixture for combustion . A faulty coil can cause weak or no spark, leading to incomplete combustion, reduced performance, and potential damage to the catalytic converter.

This is an original equipment-quality Bosch ignition coil (part number 0221504029). It is a pencil-type coil-on-plug design with a 3-pin connector and 14V rated voltage . Bosch ignition coils are built to OE material specifications with an OE-driven design for RFI suppression, and are endurance and thermal shock tested per OE design guidelines to match vehicle requirements for performance, drivability, fuel economy, and emissions . This is the same quality part used as original equipment by BMW.

 

When to Replace

• Engine misfires or rough idling
• Loss of power or sluggish acceleration
• Poor fuel economy
• Check engine light with misfire codes
• Difficulty starting or rough cold starts
• Engine vibration or shaking

Product Details & Highlights

• ✔ Genuine Bosch OEM — not an aftermarket or Chinese replica
• ✔ OE-quality resin — long-lasting and helps fight against corrosion and vibration • ✔ Superior silicone material — used to produce high voltage boot • ✔ Lower fuel consumption — and reduced exhaust emissions • ✔ Reliable voltage — for smooth engine performance • ✔ Backed by Bosch's manufacturer warranty (1–2 years depending on retailer)

Package Contents

• 1 × Bosch 0221504029 ignition coil

FAQ

FAQ

Is this a genuine Bosch part or a copy?
This is 100% genuine Bosch OEM — in original factory packaging with Bosch part number printed on the label. It is not an aftermarket brand or a replica.

Does this fit my 2001 BMW 325i?
Yes — the 2001 325i with the M54 engine uses this ignition coil (through 08/2002 production). We recommend verifying with your VIN .

Does this fit my 2000 BMW X5?
Yes — the 2000 X5 3.0i with the M54 engine is listed as compatible. Please verify with your VIN .

How many coils do I need?
This depends on your engine: 6 cylinders require 6 coils, 8 cylinders require 8 coils, and 12 cylinders require 12 coils .

Should I replace all coils at once?
It is recommended to replace all ignition coils if one fails, as the others may be similarly worn and prone to failure .

Does this coil come with the spark plug boot?
Yes — this coil includes the spark plug connector boot .

What is the warranty on this coil?
Warranty varies by retailer (typically 1–2 years). For claims, please contact the place of purchase.

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