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| Remove air filter. Remove bolts -arrows- as marked for this. |
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| Remove spark plugs using spark plug spanner. |
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| Disconnect connector from Hall sender (ignition distributor). |
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| Have a second mechanic fully depress the accelerator pedal. |
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| Check compression using compression tester -V.A.G 1763-. |
Note | How to use the test unit is described in the respective operating instructions. |
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| Operate starter until tester shows no further pressure increase. |
| Maximum permissible difference between all cylinders: 3 bar |
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