(291-2505) Bypass valve diaphragm available as spare part
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TECHNICAL SERVICE BULLETIN
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Bulletin Nbr:
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291-2505
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Date:
...........
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November 2004
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Market:
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US, CA
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Bypass valve diaphragm available as spare part
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9-3 (9440) with engine alternative B207E/L
The bypass valve diaphragm is currently available as a separate spare part. To replace the bypass valve diaphragm, use the following methods.
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Removing the bypass valve diaphragm
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1.
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Remove the mass air flow sensor connector and the hoses.
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2.
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Remove the air cleaner casing cover and the intake hose to the turbo.
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3.
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Remove the hose from the turbo's bypass valve.
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4.
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Unscrew the valve's cover, hold the cover firmly when the screws are removed.
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5.
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Lift the cover away and replace the parts.
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Fitting the bypass valve diaphragm
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1.
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Clean the cover and the turbo from gasket residue.
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2.
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Fit the diaphragm kit as illustrated.
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3.
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Fit the cover to the turbo. Use the new screws and the new gasket. Apply a thin layer of non-acidic Vaseline to the cover, to retain the gasket.
Tightening torque 8 Nm (6 lbf ft).
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4.
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Fit the hose to the turbo's bypass valve.
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5.
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Fit the air cleaner casing cover and the intake hose to the turbo.
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6.
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Connect the mass air flow sensor connector and fit the hoses.
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7.
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Check the bypass valve, see the instructions below.
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8.
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Remove the wing cover.
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Checking the bypass valve
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1.
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Detach the vacuum hose from the bypass valve.
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2.
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Connect 30 14 883 Pressure/vacuum pump, and create a vacuum in the valve.
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3.
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Check that the diaphragm is intact. If the diaphragm is damaged then the vacuum is released.
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4.
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Pump up an overpressure in the valve.
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5.
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Check that the diaphragm is intact. If the diaphragm is damaged then the overpressure is released.
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7.
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Connect the vacuum hose.
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Warranty/Time Information
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In the case of customer complaint and if the car is
within the warranty period
, use the following information to fill out the claim:
Failed Object: 29153
Repair/Action code: 01 and 08
Labour Operation (US): 2915301 (checking), 2915302 (replacement)
Labour Operation (CA): J5982
Time, checking: 0.2 hr
Time, replacement: 0.3 hr
