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Home >> Audi >> 2012 >> Q5 3.2 >> 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 >> Installing

Fuel Injectors: Installing

NOTE:

Replace the combustion chamber seals and O-rings.

Replace the spacer ring and radial adjuster if damaged.

Lightly coat fuel injector O-rings with clean engine oil.

Re-insert injector lines at same cylinder.

-- Clip radial adjustment -1- to the support ring -2-.

Fig 1: Identifying Radial Adjustment & Support Ring
GWWA24-0590Courtesy of AUDI OF AMERICA, LLC

-- When re-installing a fuel injector, use a clean cloth to clean combustion residue from the groove for combustion chamber seal and the shaft of the fuel injector.

-- Place assembly cone T10133/5 with new combustion chamber seal -1- on fuel injector -2-.

Fig 2: Identifying Assembly Cone T10133/5, New Teflon Seal & Fuel Injector
GWWN24-1564Courtesy of AUDI OF AMERICA, LLC

-- Slide combustion chamber seal as far possible onto assembly cone T10133/5 using assembly sleeve T10133/6.

Fig 3: Identifying Assembly Sleeve T10133/6 And Combustion Chamber Seal Inserted On Assembly Cone T10133/5
GWWN24-1565Courtesy of AUDI OF AMERICA, LLC

-- Turn assembly sleeve T10133/6 around and slide combustion chamber seal into groove.

NOTE:

When pushing the combustion chamber seal onto the fuel injector, the seal spreads open. Therefore after pushing it on, it must be tightened again in 2 steps, as follows.

-- Press sizing sleeve T10133/7 with a slight turning motion (approximately 180°) onto the fuel injector until it stops.

Fig 4: Identifying Calibrating Sleeve T10133/7
GWWN24-1566Courtesy of AUDI OF AMERICA, LLC

-- Pull sizing sleeve T10133/7 off again, turning it in the opposite direction.

-- Press sizing sleeve T10133/8 with a slight turning motion (approximately 180°) onto the fuel injector until it stops.

Fig 5: Identifying Calibrating Sleeve T10133/8
GWWN24-1567Courtesy of AUDI OF AMERICA, LLC

-- Pull sizing sleeve T10133/8 off again, turning it in the opposite direction.

-- Coat the new O-ring with clean engine oil before installing.

NOTE:

The combustion chamber seal must not be oiled.

Fuel Injectors, Installing

-- Clean bore in cylinder head with nylon cylinder brush T10133/4.

Fig 6: Cleaning Bore In Cylinder Head With Nylon Cylinder Brush T10133/4
GWWA24-10043Courtesy of AUDI OF AMERICA, LLC

-- Slide fuel injector into the bore cylinder head as far as stop using assembly drift T10133/9.

Fig 7: Identifying Fuel Injector Installation In Cylinder Head Using Assembly Drift T10133/9
GWWA24-10047Courtesy of AUDI OF AMERICA, LLC
NOTE:

The fuel injector must not be difficult to install. If necessary, wait as the combustion chamber seal continues to pull itself together.

-- Make sure fuel injectors are correctly positioned in cylinder head.

The rest of installation is in reverse order of removal, note the following:

-- Install lower section of the intake manifold. Refer to LOWER INTAKE MANIFOLD WITH FUEL RAIL .

-- Install upper section of the intake manifold. Refer to UPPER INTAKE MANIFOLD .