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Battery check Land Rover Discovery 1998 - 2004 Diesel 2.5 TD5

OnDemand step-by-step maintenance & repair BETA

Land Rover Discovery 1998 - 2004  | 2.5 TD5 Battery check

  • time 5 minutes
  • difficulty 1
Locate the battery
Open the battery cover
Check the Negative (-) terminal clamp is tight
Open the 'Positive' (+) protective cover
Check the Positive (+) terminal clamp is tight. CAUTION – if using a spanner to tighten the terminal, be careful not to short the spanner on the bodywork
Check the battery is generally secure, and if loose, tighten the battery retainer
To tighten, a 10mm socket or spanner is needed. Not too tight as you may damage the battery casing
Replace the battery cover. If you have to replace the battery or alternator, click below
- Close + Open

Battery removal & replacement


1 The battery is located in the front of the engine compartment.
2 Release the fasteners and remove the battery cover (see illustration)
Undo the fastener and release the clip, then remove the battery cover (arrowed)
3 Slacken the nut and disconnect the battery negative terminal clamp, followed by the positive terminal clamp (see illustration) .
Slacken the nut and pull the positive clamp from the battery terminal
4 Undo the nuts and remove the battery clamp (see illustration)
Battery clamp retaining nuts (arrowed)
5 Lift the battery from position.


6 Refitting is a reversal of removal, but always connect the positive terminal clamp first and the negative terminal clamp last. After connecting the battery terminals, it’s a good idea to apply a layer of petroleum jelly to the terminals to prevent corrosion.
- Close + Open

Alternator replacement


1 Disconnect the battery negative lead.
2 Remove the auxiliary drivebelt.
3 Prise up the rubber boot, undo the nut and disconnect the lead from the alternator (see illustration) , then disconnect the wiring plug from the rear of the alternator.
Prise up the rubber boot and disconnect the wiring
4 Undo the bolt, and remove the auxiliary drivebelt tensioner assembly (see illustration) .
Undo the drivebelt tensioner retaining bolt (arrowed)
5 Remove the bolt securing the support bracket to the top of the alternator.
6 Release the clip securing the oil drain hose to the vacuum pump (see illustration) .
Release the oil drain hose clip
7 Slacken the union bolt and disconnect the vacuum pump oil feed pipe. Discard the sealing washers, new ones must be fitted.
8 Undo the alternator lower mounting bolt, and remove the alternator, disconnecting the vacuum pump oil drain hose as the alternator is withdrawn (see illustration) . Take great care not to damage the radiator cooling fins as the unit is withdrawn.
Undo the alternator lower mounting bolt (arrowed)
9 If necessary, undo the 4 bolts and detach the vacuum pump from the alternator (see illustration) .
Vacuum pump mounting bolts (arrowed)


10 Refitting is a reversal of removal, but tighten all fasteners to their specified torque (where given).
Alternator mounting bolt 45 Nm (33 Ibf ft)
Vacuum pump bolts 10 Nm (7 Ibf ft)
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