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Checking lambda control
Removing and installing lambda probes
Removing
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‒ Disconnect connector of relevant lambda probe before catalytic converter from cylinder bank 1 and cylinder bank 2 (fitting location ).
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‒ Disconnect connector of relevant lambda probe after catalytic converter from cylinder bank 1 and cylinder bank 2 (fitting location => Page 24-5).
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‒ Remove relevant lambda probe using special tool 3337/9.
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‒ Transmission must be lowered in order to replace lambda probes after catalytic converter. This process is explained in repair manual Audi A4 1995: 6-speed Manual Gearbox 01E, Four-wheel Drive; Repair Group 34.
When installing, note the following points:
Notes:
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◆ When installing, the lambda probe wire must be secured in exactly the same position as before in order to avoid contact between the wire and the exhaust pipe.
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◆ The screw thread on the lambda probe is coated with assembly paste. This paste must not be allowed to penetrate the openings on the probe.
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◆ Tightening torque 55 Nm.
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