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| Disassemble the air filter. For this procedure, unscrew the bolts marked with arrows. |
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| Unscrew the spark plugs. |
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| Disconnect the Hall transmitter connector (ignition distributor). |
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| Allow another mechanic to step on the accelerator all the way down. |
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| Check the compression with the -V.A.G. 1381- or checking device -V.A.G. 1763-. |
Note! | –
| The throttle must be activated until the device displays no increase in pressure. |
| New: 10...15 bar overpressure Wear limit: 7 bar overpressure |
| Authorised difference between all the cylinders: 3 bar |
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