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| Engine oil temperature at least. 30 ℃ |
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| Removing ignition coils. To do so, use the extractor -T10094 A-. |
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| Remove all glow plugs using wrench -3122 B-. |
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| Remove fuse number 6 from the fuse holder located below the instrument panel, on the left-hand side. |
Note | On removing fuse number 6, the voltage supply to the fuel pump control unit is interrupted. |
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| Check compression with compression tester -V.A.G 1763-. |
Note | See relevant test unit operating instructions for instructions on how to use test unit. |
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| Operate starter until tester shows no further pressure increase. |
| Max. deviation allowed between both cylinders: 3 bar |
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| Bolt on spark plugs with the spark plug wrench -3122 B- and tighten to 30 Nm. |
| Further assembly is basically the reverse of the dismantling sequence. |
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| Consult fault memory; if necessary, repair any faults and then erase fault memory diagnosis centre -VAS 505X-„guided fault finding“. |
| If the fault memory has been erased, you must generate the readiness code again. |
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