Workshop Manuals Factory service & repair Land Rover
01 Discovery Workshop Manual - 2nd Edition02 01 - INTRODUCTION03 04 - GENERAL SPECIFICATION DATA04 05 - ENGINE TUNING DATA05 07 - GENERAL FITTING REMINDERS06 09 - LUBRICANTS, FLUIDS AND CAPACITIES07 10 - MAINTENANCE08 12 - ENGINE - Tdi09 10 11 12 12 - ENGINE - V8i13 12 - ENGINE - 4.0 V814 12 - ENGINE - Mpi15 16 17 18 17 - EMISSION CONTROL19 19 - FUEL SYSTEM - Tdi20 19 - FUEL SYSTEM - MFI21 19 - FUEL SYSTEM - SFI22 19 - FUEL SYSTEM - Mpi23 19 - FUEL SYSTEM - Cruise Control24 26 - COOLING SYSTEM - Tdi25 26 - COOLING SYSTEM - V8i26 26 - COOLING SYSTEM - Mpi27 28 30 - MANIFOLD AND EXHAUST SYSTEM29 33 - CLUTCH30 37 - MANUAL GEARBOX - R38031 41 - TRANSFER GEARBOX32 44 - AUTOMATIC GEARBOX - ZF33 34 35 47 - PROPELLER SHAFTS36 51 - REAR AXLE AND FINAL DRIVE37 38 54 - FRONT AXLE AND FINAL DRIVE39 40 41 57 - STEERING42 43 44 60 - FRONT SUSPENSION45 64 - REAR SUSPENSION46 70 - BRAKES47 74 - WHEELS AND TYRES48 75 - SUPPLEMENTARY RESTRAINT SYSTEM49 76 - CHASSIS AND BODY50 51 80 - HEATING AND VENTILATION52 82 - AIR CONDITIONING53 84 - WIPERS AND WASHERS54 86 - ELECTRICAL
Land Rover 300Tdi Discovery32 · 44 - AUTOMATIC GEARBOX - ZF
32 · Transmission

ROAD TEST PROCEDURE (page 2 of 2)

Make
Land Rover
Model
Discovery 300Tdi Discovery
Section
FAULT DIAGNOSIS
44 - AUTOMATIC GEARBOX - ZFROAD TEST PROCEDURE · page 2 of 2
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ZF

3

FAULT DIAGNOSIS

ROADTEST 3 = CHECKS
12-13-14-15-16-17-18-19-20-21-22-23

D SELECTED FROM REST

LIGHT THROTTLE START

CHECK 12

Check 1st 2nd upshift speed and quality.

CHECK 13

Check 2nd 3rd upshift speed and quality.

CHECK 14

Check 3rd 4th upshift speed and quality.

NOTE: This shift is usually very difficult to
detect but can be confirmed by a 200 rpm
drop in engine speed.

CHECK 15

Check speed and quality of shift into direct drive
clutch, confirmed by 300 rpm drop in engine speed.

NOTE: An intermediate throttle position
engagement of 4th and the direct drive
clutch, which is indicated by a fall of

500rpm in engine speed.

CHECK 16

At approximately 88 kph (55 mph) depress throttle to
kickdown - gearbox should change down to 2nd -
release throttle to re-engage 4th direct drive clutch
continue to accelerate gently.

CHECK 17

At approximately 128 kph (80 mph) depress throttle to
kickdown - gearbox should change down to 3rd -
release throttle to re-engage 4th direct drive clutch
and continue to accelerate gently.

CHECK 18

At approximately 138 kph (85 mph) select 3rd,
gearbox should change immediately down to 3rd.
Release throttle.

CHECK 19

De-accelerate to approximately 47 kph (30 mph)
depress throttle to kickdown - geabox should
downshift to 1st gear, continue accelerating at full
throttle until 3rd gear is attained. To do this you will
have repeated check 2 of Test 1.

CHECK 20

At 128 kph (80 mph) select 2nd no downshift should
occur. Release throttle.

CHECK 21

At 104 kph (65 mph) an automatic downshift into 2nd
gear should occur. Continue to de-accelerate.

CHECK 22

At 88 kph (55 mph) select 1st. No downshift should
occur. Continue to de-accelerate.

CHECK 23

With 1 selected 2nd gear engaged continue to
de-accelerate and at 45 kph (28 mph) the box should
automatically downshift to 1st gear after which no
upshifts will occur in this selector position.

END OF ROADTEST

Parts & tools for this job Staging For Land Rover Discovery

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