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Home >> Audi >> 2009 >> Q5 >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> 3.2L - Fuel Injection System - Engine Code(S): CALB >> 24 Fuel Injection System >> Removal And Installation >> Fuel Injectors >> Notes
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Fuel Injectors: Notes

Special tools and workshop equipment required 

NOTE:

The puller T10133/2 was changed and is now called the puller T10133/2-A. If the new tool is not available, the old one can be modified.

Modify puller T10133/2 to create the puller T10133/2-A.

Special tools and workshop equipment required 

-- File the semi-circle as shown in the illustration (See Fig 1). The semi-circle allows the tool to slide farther onto the fuel injector, thus providing the tool with a larger contact surface.

-- Mark modified tool with an "A" at the end of the tool number.

Fig 1: Modifying Puller T10133/2
GWWN24-10447Courtesy of AUDI OF AMERICA, LLC

High Pressure Fuel Injector, Assembly Overview

Fig 2: High-Pressure Fuel Injector - Component Overview
GWWA24-0533Courtesy of AUDI OF AMERICA, LLC
  1. Radial adjustment - Replace if damaged
  2. Combustion chamber seal (Teflon seal) - replace, the seal must not be greased or be handled with any other lubricant during installation
  3. Groove on fuel injector
  4. Spacer ring - Replace if damaged
  5. O-ring - replace, lightly coat with clean engine oil during installation
  6. Support ring - fuel rail wields force via the support ring to hold the fuel injector tightly in the cylinder head