Land Rover Discovery: Accessory Drive - Ingenium
i4 2.0l Diesel / Diagnosis and Testing
PRINCIPLES OF OPERATION
For a detailed description of the Accessory Drive Belt, refer to the relevant
Description and Operation section in the workshop manual. REFER to:
Accessory Drive (303-05B Accessory Drive - INGENIUM I4 2.0L Diesel,
Description and Operation).
INSPECTION AND VERIFICATION
WARNINGS:
CAUTIONS:
NOTES:
- If a control module or a component is suspect and the vehicle
remains under manufacturer warranty, refer to the Warranty Policy
and Procedures manual, or determine if any prior approval
programme is in operation, prior to the installation of a new
module/component.
- When performing voltage or resistance tests, always use a digital
multimeter accurate to three decimal places, and with an up-todate
calibration certificate. When testing resistance always take the
resistance of the digital multimeter leads into account.
- Check and rectify basic faults before beginning diagnostic routines
involving pinpoint tests.
- Verify the customer concern
- Visually inspect for obvious signs of damage and system integrity
Visual Inspection
MECHANICAL
- Accessory drive belt
- Accessory drive belt tension
- Accessory drive belt tensioner
- Accessory drive belt idler pulleys
- If an obvious cause for an observed or reported concern is found,
correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to
the
Symptom Chart, alternatively check for Diagnostic Trouble Codes
(DTCs) and refer to the DTC Index
- Check DDW for open campaigns. Refer to the corresponding bulletins
and SSMs which may be valid for the specific customer complaint and
carry out the recommendations as required
SYMPTOM CHART
SYMPTOM:
Accessory
drive belt
noise
POSSIBLE CAUSES:
- Accessory drive belt
stretched, damaged or
contaminated with oil
- Accessory drive belt
pulley(s)
misaligned/damaged/seized
ACTION:
- GO to Pinpoint Test A.
- Check the accessory drive belt pulleys
for correct alignment, damage and
freedom of rotation
- Using the manufacturer approved
diagnostic system, perform routine -
Noise, vibration and harshness sensor
diagnostic test - Accessory drive belt
SYMPTOM:
Accessory
drive belt
does not
hold tension
POSSIBLE CAUSES:
- Accessory drive belt
stretched, damaged or
contaminated with oil
- Accessory drive belt
tensioner worn/damaged
ACTION:
- GO to Pinpoint Test A.
- GO to Pinpoint Test B.
PINPOINT TESTS
WARNING:
Ensure that the engine is stopped before performing this test.
Failure
to follow this instruction may result in personal injury.
WARNING:
Ensure that the engine is stopped before performing this test.
Failure
to follow this instruction may result in personal injury.
WARNING:
Ensure that the engine is stopped before performing this test.
Failure
to follow this instruction may result in personal injury.
WARNING:
Ensure that the engine is stopped before performing this test.
Failure
to follow this instruction may result in personal injury.
WARNING:
Eye protection must be worn during this test. Failure to follow this
instruction may result in personal injury.
NOTE:
Excessive drive belt rideout (uneven depth of grooves in the
accessory drive belt) can also cause excessive accessory drive belt
tensioner movement.
WARNING:
Eye protection must be worn during this test. Failure to follow this
instruction may result in personal injury.
DTC INDEX
For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this
vehicle, please refer to Section 100-00. REFER to: Diagnostic Trouble Code
Index - INGENIUM I4 2.0L Diesel, DTC: Engine Control Module (ECM)
B10A2-07 to P034B-76 (100-00 General Information, Description and
Operation).
Accessory Drive - Ingenium
i4 2.0l Diesel Specifications
Torque Specifications
READ NEXT:
REMOVAL
NOTE:
Removal steps in this procedure may contain installation details.
Refer to: Engine Cover - INGENIUM I4 2.0L Diesel (501-05 Interior
Trim and Ornamentation, Removal and Installation).
PART(S)
REMOVAL
CAUTION:
Be prepared to collect escaping coolant.
NOTES:
Some variation in the illustrations may occur, but the essential
information is always correct.
Some components shown rem
SEE MORE:
PRINCIPLES OF OPERATION
For a detailed description of the Automatic Transmission, refer to the
relevant Description and Operation section in the workshop manual. REFER
to: Transmission Description (307-01 Automatic Transmission/Transaxle,
Description and Operation).
INSPECTION AND VERIFICATION
CAUTI
NOTES:
Make sure that the vehicle battery is fully charged before carrying
out this procedure.
After the battery has been disconnected or a new window regulator
and motor or door module has been installed, it is necessary to
initialize each door window motor separately to operate the onetouch