| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| Adjust the backrest by pressing with your hands to identify the sources of the noise coming from the backrest; dismantle the backrest. Op. 7045D30 FRONT SEAT BACKREST COVER, LEFT OR RIGHT - R.R. | Move on to Step 1 | Components with interference | Move the interfering parts apart.If there is interference between the backrest upholstery plastic profile and the metal parts of the backrest, shorten them |
| 1 | CHECK ON ADJUSTMENT PLATE | All OK | Problems encountered | Operation |
|---|
| Check that the adjustment plate is not in contact with the backrest frame components. | Move on to Step 2 | Components interfering | Replace the seat frameOp. 7045A86 |
| 2 | CHECK ON MATCHING OF UPPER AND LOWER CROSSMEMBERS WITH BACKREST SIDES | All OK | Problems encountered | Operation |
|---|
| Check the areas where the upper and lower crossmembers are matched with the backrest sides. | Move on to Step 3 | Breaks in the matching areas | Replace the seat frame.Op. 7045A86 |
| 3 | CHECK ON WHIPLASH MECHANISM ON BACKREST | All OK | Problems encountered | Operation |
|---|
| Check for creakign caused by the whiplash mechanism on the backrest. | Move on to Step 4 | 1. Joint springs creaking2. Contacts with backrest internal components (frame, etc.). | 1. Lubricate the joint springs with grease.2. Space out the parts in contact. |
| 4 | CORRECT OPERATION CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the fault is no longer present. | End of diagnosis | The fault persists | Replace the seat frame.Op. 7045A86 |
