BMW piezo GDI injectors operate at extremely high pressures and require specialized test equipment and BMW OEM test plans to be evaluated accurately. At The Injector Shop, your injectors are tested at actual operating pressure using BMW OEM flow test plans, not low pressure port style benches.

We utilize precision flow sensors that measure liquid fuel shot to shot under real GDI conditions. This allows us to digitally analyze injector performance against BMW factory specifications and provide true repeatable test results the same way the injector manufacturer intended.

This is not a basic cleaning service.
This is a professional OEM level cleaning flow testing and regeneration service for your supplied BMW piezo GDI injectors.

What You Are Purchasing

You are paying for a complete OEM level service that includes professional cleaning, high pressure BMW specific testing, and piezo stack regeneration of your BMW piezo GDI injectors using specialized equipment.

This service includes:

• Multi stage ultrasonic cleaning and internal back flushing
• BMW OEM flow testing at real operating pressure
• Electrical leak down and volume performance analysis
• Piezo crystal stack regeneration

While proper cleaning and regeneration can often improve injector condition, results are not guaranteed. BMW piezo injectors are known for internal mechanical failures such as leakage and electrical drift that cannot be repaired through cleaning or regeneration.

Important policy note:
There are no refunds for cleaning testing and regeneration services if an injector fails testing. The service fee covers the entire process including equipment time labor and OEM level diagnostics.

In many cases a failure is minimal and does not automatically mean the injector must be replaced. We evaluate all test data holistically and provide an honest recommendation based on the full test profile of each injector.

OEM Level Digital Test Reporting

• Computer generated results
• Color coded for easy interpretation
• Based on BMW OEM flow test plans
• Delivered digitally via email
• Sequenced to your injector numbering if provided

Service Price

Price per injector 55.00
Select a quantity that matches the number of injectors you are sending.

What Is Included in Our BMW Piezo GDI Service

1. Professional Cleaning

• Removal of combustion seal inlet piping and micro filter
• Three stage heated ultrasonic cleaning
• Pressurized internal back flush
• Final internal contamination purge

2. BMW OEM Specific Testing

• Piezo coil electrical testing
• Nozzle leak down testing
• Three individual volume tests at operating pressure
• Real time oscilloscope waveform analysis
• Shot to shot flow accuracy measurement
• Performance analysis versus BMW OEM specifications

3. Parts Replacement

• New combustion seal
• New inlet micro filter

4. Piezo Regeneration

• Piezo crystal stack reset to OEM sizing and response characteristics

Shipping Instructions

Ship your injectors to:

The Injector Shop
19407 99th Ave SE
Snohomish WA 98296

Shipping Checklist

• Download and print the service form and include it with your injectors
• Remove all external grease oil and gasoline residue
• Place injectors in sealable plastic bags
• We are not responsible for incoming shipments rejected due to fuel odor or leakage
• Wrap and protect nozzle tips and electrical connectors. These components are fragile and must be protected
• Cylinder numbers may be marked for your records. We will sequence test reports accordingly

Turnaround Time

Piezo injectors are cleaned and tested individually using specialized equipment.

Current turnaround time:
Six business days from the date your injectors are received.

Abandoned Injectors Policy

Any injectors left unpaid for more than thirty calendar days after service completion become the property of The Injector Shop.