Road test for comfort evaluation
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- General › Road test for comfort evaluation
ROAD TEST FOR COMFORT EVALUATION
- Carry out a road test on traffic free roads in safe conditions following the highway code.
- Before proceeding with the test, check the inflation pressure of the two vehicles, restoring the values to the correct ones if they are found to be incorrect.
- Also check the conditions of the wheel rims making sure they are not distorted or broken, replacing them if any faults are found.
- Carry out the test on an uneven road surface, at a speed of 40 km/h to check the capacity of the suspension to absorb the stresses produced by small imperfections (suspension damping) with the consesquent acoustic repercussions inside the passenger compartment.
- Check the capacity of the suspension to absorb the stresses produced by large imperfections and the consequent acoustic repercussions inside the passenger compartment, carry out the road test at a speed of 40 km/h over a route that has a series of pot-holes.
- Check the rapid damping of any pitching produced by the irregularities in the road surface, carrying out the test at a speed of 50 km/h on a straight road with suitably spaced humps and holes.
- This type of test should always be used for comparison with a new vehicle or reference vehicle of the same trim level and engine type, available in the workshop at the time of the test in question.
- At the end of the test in question, assess/rate the driving comfort of the vehicle in accordance with the enclosed table.
| Judgement | Vote |
|---|---|
| Poor | 3 |
| Mediocre | 4 |
| Just acceptable | 5,5 |
| Acceptable | 6 |
| Good | 7 |
The reference vehicle has a driving comfort default rating of 7.
Parts & tools for this job Staging For 2005 Alfa Romeo 159
- TOOLCoil spring compressorSearch: coil spring compressor
- TOOLBall joint separatorSearch: ball joint separator
- PARTShock absorbersSearch: Alfa Romeo 159 2005 shock absorbers
Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.