Workshop Manuals Factory service & repair Land Rover
01 Discovery Series II - Workshop Manual - 1999MY ON - 6th Edition - NAS02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 INTRODUCTION32 33 GENERAL INFORMATION34 35 GENERAL DATA36 IDENTIFICATION NUMBERS37 38 TORQUE WRENCH SETTINGS39 40 LIFTING AND TOWING41 CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS42 43 44 MAINTENANCE45 46 ENGINE - V847 48 EMISSION CONTROL - V849 50 ENGINE MANAGEMENT SYSTEM - V851 FUEL DELIVERY SYSTEM - V852 53 COOLING SYSTEM - V854 55 MANIFOLDS AND EXHAUST SYSTEMS - V856 57 58 59 CLUTCH - V860 61 MANUAL GEARBOX - R38062 63 TRANSFER BOX - LT230SE64 65 66 AUTOMATIC GEARBOX - ZF4HP22 - 2467 PROPELLER SHAFTS68 69 REAR AXLE70 71 72 73 74 75 FRONT AXLE76 77 78 79 STEERING80 FRONT SUSPENSION81 82 83 REAR SUSPENSION84 85 86 87 BRAKES88 RESTRAINT SYSTEMS89 90 DOORS91 EXTERIOR FITTINGS92 93 INTERIOR TRIM COMPONENTS94 SCREENS95 96 97 SEATS98 99 SUNROOF100 CHASSIS AND BODY DIMENSIONS101 102 103 104 PANEL REPAIRS105 106 107 108 BODY SEALING MATERIALS109 110 111 112 113 CORROSION PREVENTION AND SEALING114 PAINTING115 HEATING AND VENTILATION116 117 AIR CONDITIONING118 119 WIPERS AND WASHERS120 CHARGING AND STARTING121 122 LIGHTING123 BODY CONTROL UNIT124 125 126 ALARM SYSTEM AND HORN127 128 WINDOWS129 IN CAR ENTERTAINMENT130 HARNESSES131 DRIVING AIDS132 NAVIGATION SYSTEM133 INSTRUMENTS
Land Rover Discovery II80 · FRONT SUSPENSION
80 · Steering & suspension

Description - ACE (FRONT SUSPENSION) (page 9 of 13)

Make
Land Rover
Model
Discovery II
Section
DESCRIPTION AND OPERATION
FRONT SUSPENSIONDescription - ACE · page 9 of 13
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FRONT SUSPENSION

DESCRIPTION AND OPERATION

60-17

The actuator has a forked end which locates on the bush in the short arm and is secured with a bolt and nut. The 
piston rod of the actuator locates through a hole in a cast boss on the long arm which is fitted with a special bush. A 
shoulder on the piston rod seats in a hole in the bush and a locknut on the end of the piston rod secures the rod to 
the long arm and bush.

 The front torsion bar is attached to the front chassis cross member. Two rubber bushes are fitted to the torsion bar 
and are located in clamp plates. The clamp plates are located in slots in the cross member and secured with bolts.

The rear torsion bar is attached to the tubular cross member at the rear section of the chassis. Two rubber bushes 
are fitted to the torsion bar and are located in clamp plates. The clamp plates are located in fabricated brackets 
attached to the tubular cross-member and secured with bolts.

Two anti-roll bar links are mounted on brackets on the front and rear axles. Each anti-roll bar link is fitted with a 
spherical bearing at each end. One bearing is attached to the link at a 90

°

 angle. The threaded shank of the bearing 

is located through a hole in a bracket on the axle and secured with a locknut; a washer is installed on the threaded 
shank between the bearing and the bracket. The second spherical bearing is attached in-line with the link and locates 
in the torsion bar on the left hand side and the long arm on the right hand side. The front anti-roll bar links are longer 
than the rear links and are not interchangeable.

Accelerometers
Two accelerometers are used for the ACE system. The upper accelerometer is mounted on a bracket, behind the 
headlining adjacent to the rear view mirror and the sunroof ECU. The lower accelerometer is located on a bracket on 
the inner sill panel under the RH front floor.

The lower accelerometer is the primary sensor used to measure lateral acceleration of the vehicle for roll control. The 
upper accelerometer is used by the ECU for roll correction and fault detection in conjunction with the lower 
accelerometer.

Each accelerometer is a solid state capacitive acceleration sensor and operates on a 5 V supply from the ECU. The 
upper and lower sensors can measure acceleration in the range of 

±

 1.10 g and return an output to the ECU of 

between 0.5 and 4.5 V.

Failures of an accelerometer are recorded by the ECU and can be retrieved using TestBook. A special tool is required 
to remove and replace a sensor in the bracket.

Parts & tools for this job For Land Rover Discovery

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