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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (3.0L - Diesel Fuel Injection - Engine Code: CATA) >> 23 Diesel Fuel Injection >> Injection System Components >> Fuel Pressure Regulator Valve -N276-, REMOVING AND INSTALLING >> Removing

Fuel Pressure Regulator Valve -N276-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different variant/trim than selected.
CAUTION:

Follow the guidelines for a clean working environment when working on the fuel system. Refer to CLEAN WORKING CONDITIONS AND FUEL SYSTEM WORK INSTRUCTIONS .

Always follow these instructions before and during work.

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Before removing, clean the threaded area around the fuel pressure regulator valve with a commercially available detergent. Dirt must not enter the hole in the fuel rail.

NOTE:

Clean carefully, cleaner must not enter the connector.

-- Dry the Fuel Pressure Regulator Valve -N276-.

-- Remove the banjo fitting for the fuel return lines.

-- Disconnect the connector from the Fuel Pressure Regulator Valve -N276-.

-- Loosen the union nut using the 30 mm Open End WrenchT10553 to do so counterhold on the housing hex fitting at the same time. Then remove it by hand.

-- Suction any dirt out of the hole, the threads and the sealing surface. Do not use mechanical tools.

NOTE:

Seal the hole in the fuel rail immediately with a plug to prevent dirt from entering.