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Battery check Land Rover Discovery 2004 - 2009 Diesel 2.7 TDV6

OnDemand step-by-step maintenance & repair BETA

Land Rover Discovery 2004 - 2009  | 2.7 TDV6 Battery check

  • time 5 minutes
  • difficulty 1
Locate the battery
Open the battery cover
Check the Negative (-) terminal clamp is tight
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, use an 8mm socket or spanner. 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

Disconnection

1 The main battery is located at the left-hand side of the engine compartment.
2 The battery lead disconnection procedure depends on the vehicle condition. Follow the appropriate procedure: Engine running
  1. Apply the handbrake, switch off the ignition and remove the key.
  2. Wait at least 2 minutes for any residual electrical energy to dissipate.
Vehicle powered down, alarmed and locked
  1. Unlock the vehicle, and disarm the alarm using the ‘plip’ button. If the battery is discharged, unlock the vehicle using the key in the passenger’s door lock.
  2. Turn the ignition switch to position II, apply the handbrake.
  3. Turn off the ignition and remove the key.
  4. Wait at least 2 minutes for any residual electrical energy to dissipate.
Vehicle unlocked
  1. Turn the ignition switch to position II, apply the handbrake.
  2. Turn off the ignition and remove the key.
  3. Wait at least 2 minutes for any residual electrical energy to dissipate.

All conditions

3 Unclip and remove the battery cover (see illustrations) .
Release the clips at the front (arrowed) …
… and remove the battery cover
4 Slacken the nut and disconnect the battery negative lead clamp (see illustration) .
Slacken the nut (arrowed) and disconnect the negative lead clamp

Removal

5 Disconnect the battery negative lead as described previously in this Section.
6 Slacken the nut and disconnect the battery positive terminal clamp (see illustration) .
Slacken the nut (arrowed) and disconnect the positive lead clamp
7 Undo the bolts and remove the battery clamp (see illustration) .
Undo the bolts (arrowed) and remove the battery clamp
8 Lift the battery from position. Disconnect the vent pipe as the battery is withdrawn (see illustration) .
Lift the battery from place and disconnect the vent hose (arrowed)

Auxiliary battery

Note: Although only some vehicles were fitted with an auxiliary battery, all are fitted with a cover and battery tray.
9 Unclip the auxiliary battery cover (see illustration) . The cover is located on the right-hand side of the engine compartment.
Release the clips (arrowed) and remove the auxiliary battery cover
10 Undo the clamp and disconnect the battery negative lead, followed by the positive lead.
11 Release the clamp and remove the battery.

Refitting

12 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.
13 After reconnecting the battery leads, switch on the ignition, and apply the handbrake several times until the warning light is extinguished.
14 On models with an electrically-operated sunroof, if the battery has been disconnected, the sunroof will have lost its ‘one-touch’ and ‘anti-trap’ functions. To restore these functions the sunroof ECU must be recalibrated by pressing the lower part of the sunroof switch for 20 seconds. The automatic calibration process will commence. This includes fully opening, and closing the sunroof.
- Close + Open

Alternator replacement

Removal

1 Disconnect the battery negative lead.
2 Raise the front of the vehicle and support it securely on axle stands.
3 Undo the 4 bolts and remove the access panel beneath the radiator (see illustration) .
Undo the bolts (arrowed) and remove the panel beneath the radiator
4 Remove the auxiliary drivebelt.
5 Unclip the pipes and hoses from the cooling fan lower shroud.
6 Undo the screw, release the clip each side, and remove the cooling fan lower shroud (see illustrations) .
Undo the air intake pipe bracket screw (arrowed)
Release the clip (arrowed) each side and lift out the cooling fan lower shroud
7 Prise up the rubber boot, undo the nut and disconnect the heavy duty lead from the alternator, then disconnect the wiring plug (see illustration) .
Prise up the rubber boot (arrowed) and disconnect the main lead followed by the plug on the rear of the alternator (arrowed)
8 Undo the 3 alternator mounting bolts (see illustrations) .
The alternator is secured by 2 bolts on the underside and a bolt on top (arrowed)
9 Manoeuvre the alternator from position.

Refitting

10 Refitting is a reversal of removal, but tighten the alternator mounting bolts to 48 Nm (35 Ibf ft) in the following sequence:
  1. Upper mounting bolt.
  2. Lower front mounting bolt.
  3. Lower rear mounting bolt.
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