| Fault finding for the automatic 4-speed gearbox |
| Fault finding contains a number of malfunction tables based on the most common complaints which indicate possible sources of the trouble. |
| To evaluate a complaint, it is necessary to have as complete information about the malfunction and the development of the problem as possible. The symptoms described by the customer should be checked during a road test “with the customer driving”. |
| Knowledge of the construction and function of the gearbox is essential for an accurate diagnosis → Chapter. |
| To avoid further damage or misdiagnoses, the following points must be checked and, as necessary, corrected “before” the road test. |
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| External damage, such as leaks |
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| Selector lever cable is correctly adjusted → Chapter |
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| → ATF level is correct; → ATF does not smell burnt and is free of foreign particles |
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| Engine is running properly |
| Select a stretch of road for the road test on which all the functions of the gearbox can be evaluated including “shifting, various speeds, driving forwards and reversing”. |
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