Fuel Pressure Regulator Valve -N276-, CHECKING: Procedure

WARNING: This page is about a different car, the 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Danger of malfunction caused by dirt.

Observe, refer to FUEL SYSTEM SAFETY PRECAUTIONS .

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

-- Open the clamp -arrow- and remove the fuel supply hose -1- from the banjo bolt.

Courtesy of AUDI OF AMERICA, LLC

-- Close the open connection on the banjo bolt with a blind plug -arrow-.

Courtesy of AUDI OF AMERICA, LLC

-- Hold the fuel return line -1- in its own container (lengthen the fuel return line if necessary).

NOTE:

The amount of fuel in the fuel injector from the fuel return line -1- is not important for this test.

Fuel temperature greaten then 10 °C (50 °F).

-- Remove the fuel return hose -2-.

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore items -1 and 3-.

-- Seal off the open return connection with an adapter hose -2- and a Hose Clamp - Up To 25mm :3094 .

Courtesy of AUDI OF AMERICA, LLC

-- Hold the fuel return hose -1- in a measuring container.

-- Start the engine and let it run in idle.

Specified Values

Return quantity when starting: 0 ml
Return quantity in 2 minutes: 0 to 50 ml.

If the specified values are not reached, the Fuel Pressure Regulator Valve -N276- is faulty.

-- Secure the fuel supply hose with a new clamp on the banjo bolt.