Brake boost sensor error - Alfa Romeo Forum
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Brake boost sensor error

Those of you who have had a Error code P0555 (Brake boost pressure sensor) may be interest in this. The Alfa part number for the sensor is 46769979 and this would cost nearly 100 from Alfa. The part is Bosch and the Bosch number is 0 261 230 052 and I got it for 27 delivered on line.

It is a pig of a job to install this sensor as it's behind the engine (2.0 JTS) and apparently it would cost you 350 to have it fitted by a workshop. You would need to tilt the engine forwards and to do this the front flexi section of exhaust needs to be disconnected together with the engine support bracket next to it. The top engine steady bar also needs to be removed. Naturally, you will need to jack the engine at the rear so as to tilt it forwards as it will want to move towards the bulkhead when you remove the bracket and steady bar. The sensor is fixed in place by a single crosshead screw and you will need small hands and a stubby screwdriver to get the sensor out.

Regards Denis
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