Contents: Starting the engine ⇩ Starter Interlock Switch -…⇩ Selector lever cable - (for…⇩ Engine Operation and Throttle Control ⇩ Clutch and gear selection ⇩ Shifting gears and parking the car ⇩ Steering ⇩ Car suspension ⇩ Service brake system ⇩ Parking brake ⇩ Devices ⇩ Body ⇩ Seat belts ⇩ Road tests ⇩
There are two reasons why a road test is carried out. First, to ensure that all maintenance work has been completed and carried out in accordance with the requirements set by the car dealer network. Second, a qualified mechanic must make an overall assessment of the car's condition and communicate this to the customer.
CAUTION: Tests must be performed on a dual-drum dynamometer.
If tests are performed on a dual-drum dynamometer, they are limited to 3 mph (5 km/h).
Starting the engine
1. Check the operation of the starter solenoid. Make sure that the engine starts normally. Let the engine run.
Starter Interlock Switch - (Automatic Transmissions Only)
1. Select position 'D' of the automatic transmission selector.
2. Make sure the engine does not start.
3. Select the 'R' position of the automatic transmission selector and try to start the engine again.
4. Check the possibility of starting the engine with the selector in positions 'P' and 'N'.
Selector lever cable - (for automatic transmissions only)
1. Check that the automatic transmission selector cable is adjusted correctly.
Engine Operation and Throttle Control
1. Start the engine and make sure it starts easily.
2. Make sure that the "oil pressure" and "no battery charge" indicators go out.
3. Make sure that the accelerator pedal moves freely and without sticking.
4. Make sure that the engine "responds" to the movement of the accelerator pedal.
Clutch and gear selection
(Only for vehicle with manual transmission, normal driving conditions)
1. Make sure that the clutch engages smoothly, without jerking, slipping and without noise.
2. Make sure that there are no extraneous noises coming from the gearbox.
3. Make sure that gear shifting is smooth and easy.
Shifting gears and parking the car
(only for vehicles with automatic transmission, normal driving conditions)
1. Set the gear selector to position 'R' and check that the vehicle starts moving smoothly.
2. Set the selector to position 'D' and check the smoothness of upshifting from the moment the car starts moving.
3. Stop the vehicle and make sure that the gears shift smoothly to lower gears.
4. Stop the car on the slope.
5. Place the selector lever in position 'P' and release the parking brake.
6. Make sure that the vehicle is not moving and the selector does not move out of the "P" position.
7. Perform the same exercise for the car in the opposite position.
Steering
1. With the vehicle stationary, turn the steering wheel from one extreme position to the other. Make sure that the steering operates smoothly and that there is no extraneous noise from the power steering pump or drive belt.
Car suspension
1. When driving the vehicle, make sure that there are no extraneous noises, vibrations during movement (for example, from shock absorbers) or from wheel imbalance.
Service brake system
1. Check the amount of force on the brake pedal, the braking distance, the efficiency of the brake mechanisms, the vehicle's drift and grip.
Parking brake
1. Pull the parking brake handle firmly, check the working stroke of the handle, the holding of the brake pawl and the ease of its release.
Devices
1. Check the operation of all instruments, indicators and alarms.
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Body
1. Make sure there are no extraneous noises coming from the body elements.
Seat belts
1. Check the operation of the inertial coils.
Road tests
1. Perform a short road test of the vehicle. Check that all vehicle systems are working properly. Pay particular attention to:
- Engine noises
- Noises from the gearbox
- Car suspension noises
- Car body noises
- Operation of the vehicle's braking system
- Gear shifting
- General engine operation
2. If possible, check the operation of the downhill driving assistance system (HDC). If this requires covering a long distance, this test should be omitted.
3. After completing the bench and road tests, perform a final inspection of the vehicle by raising it on a lift.
4. Check the level of all oils, antifreeze and working fluids and, if necessary, bring it up to the nominal level.
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