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Battery check Ford Focus 2005 - 2011 Petrol 2.0

OnDemand step-by-step maintenance & repair BETA

Ford Focus 2005 - 2011  | 2.0 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 terminal, be careful not to short the spanner on the bodywork
Check battery is generally secure, if loose, tighten the battery retainer
To tighten, a 13mm socket is needed. Not too tight as you may damage the battery casing
Replace battery cover. If you have to replace the battery or alternator, click below
- Close + Open

Battery removal & replacement

Caution: Wait at least 5 minutes after turning off the ignition switch before disconnect the battery. This is to allow sufficient time for the various control modules to store information.
Note: Ensure you have the audio unit security code. This code will need to be inputted after reconnecting the battery – refer to the owner’s handbook supplied with the vehicle.

Removal

1 The battery is located on the left-hand side of the engine compartment. Begin by removing the air cleaner assembly as follows:

1.4 and 1.6 litre non-Ti-VCT engines

2 Slacken the clamp at each end and remove the air cleaner outlet tube (see illustration) .
Release the clamps and remove the outlet tube
3 Unhook the rubber retaining ring (see illustration) .
Unhook the rubber ring
4 Pull the collar away from the air cleaner assembly, and disconnect the crankcase ventilation hose from the air cleaner (see illustration) .
Pull the collar and disconnect the ventilation hose
5 On later models, undo the 4 scrivets and remove the air deflector panel above the radiator grille (see illustration) .
Undo the scrivets and remove the air deflector panel
6 Pull the air cleaner upwards to remove it. The pegs on the base of the cleaner fit into rubber grommets. These pegs may prove troublesome to release, and some effort may be needed – take care to avoid personal injury.

1.6 litre Ti-VCT engines

7 Disconnect the mass airflow sensor wiring plug, located in the outlet from the air cleaner cover (see illustration) .
Prise up the red locking catch and disconnect the wiring plug
8 Slacken the clamps and remove the air outlet hose from the between the air cleaner and the throttle body (see illustration) .
Slacken the outlet hose clamps
9 Disconnect the wiring plug from the coolant degas flow control valve (where fitted), then unclip the pipes, remove the 2 retaining bolts, and move the valve to one side.
10 Squeeze together the sides of the collar and pull off the crankcase ventilation hose from the rear of the air cleaner (see illustration) .
Squeeze together the side of the collar and pull the ventilation hose from the air cleaner
11 Unhook the rubber retaining ring at the front right-hand corner of the air cleaner assembly.
12 Pull the air cleaner upwards to remove it. The pegs on the base of the cleaner fit into rubber grommets. These pegs may prove troublesome to release, and some effort may be needed – take care to avoid personal injury.

1.8 and 2.0 litre engines

13 Remove the plastic cover from the top of the engine by pulling it upwards from its mountings.
14 Release the clips and remove the air cleaner outlet ducting (see illustration) .
Use a small screwdriver to prise apart the hose clips
15 Detach the rubber strap at the front of the housing (see illustration) .
Release the rubber strap
16 Pull the air cleaner upwards from it rubber mountings. Squeeze together the sides of the collar and disconnect the crankcase ventilation hose from the air cleaner housing as it’s withdrawn.

All engines

17 Release the clip and remove the battery cover (see illustration) .
Release the clip and remove the battery cover
18 Slacken the clamp nut and disconnect the battery negative lead terminal (see illustration) .
Slacken the nut and disconnect the battery negative terminal . . .
19 Slacken the clamp nut and disconnect the battery positive lead terminal (see illustration) .
. . . followed by the positive terminal
20 Using a screwdriver release the clips securing the cables to the battery box, then unclip and remove the front wall of the battery box.
21 Unscrew the nuts and remove the battery retaining clamp (see illustration) .
Undo the battery clamp nuts (arrowed)
22 Lift the battery out of the engine compartment.
23 If required, remove the battery tray as follows:
24 On 1.4 and 1.6 litre models, and 1.8 and 2.0 litre models up to 03/2007, unclip the cover, then undo the 3 Torx bolts and move the engine management PCM from its location on the side of the battery tray and lay it over the engine (see illustration) .
Release the clips and remove the cover over the PCM
25 Undo the 3 bolts and remove the battery tray (see illustration) .
Battery tray bolts (arrowed)

Refitting

26 Position the battery in the battery box.
27 Refit the retaining clamp and tighten the retaining nuts securely.
28 Reconnect the battery positive lead, followed by the negative lead. Smear a little petroleum jelly on the terminals. Ensure no-one is inside the vehicle whilst the battery is reconnected.
29 Refit the battery cover.
30 After reconnecting the battery, the engine may run erratically until it’s been driven for a few minutes to allow the PCM to relearn. Also the electric windows may need to be re-initialised as follows:
  1. Press and hold the window control close button until the window is fully closed.
  2. Release the button, then press it again for 3 seconds.
  3. Briefly press the open button to the second detent, then release it. The window should open automatically.
  4. Briefly press the close button to the second detent, then release it. If the window does not close automatically, repeat the complete procedure.
  5. Repeat this procedure on each electric window.
- Close + Open

Alternator replacement

Removal

1 Disconnect the battery negative lead.
2 Undo the bolt and move the power steering reservoir to one side (models with conventional power steering only) (see illustration) .
Power steering fluid reservoir bolt (arrowed)
3 Remove the auxiliary drivebelt.

1.4 and 1.6 litre engines

4 Undo and remove the alternator upper mounting nut (see illustration) .
Alternator upper mounting nut (arrowed)
5 Undo the alternator lower retaining bolt (see illustration) .
Alternator lower mounting bolt (arrowed)
6 Undo the remaining upper mounting bolt and remove the splash shield (see illustration) .
Alternator upper mounting bolt (arrowed)
7 Unclip the alternator wiring harness, then disconnect the power steering pressure switch, and the plug from the rear of the alternator.
8 Prise off the plastic cap, then undo the nut and disconnect the remaining cable from the rear of the alternator.
9 Unscrew the alternator upper mounting stud. This can be done using two nuts locked together on the stud’s threads, or pull the alternator forwards a little and use a pair of self-grip pliers to unscrew the stud. Support the alternator as the stud is removed, then lift the alternator from place.

1.8 and 2.0 litre engines

10 Remove the plastic cover on the top of the engine by pulling it straight upwards from its mountings.
11 Undo the right-hand headlight upper retaining bolt (see illustration) .
Headlight retaining bolt
12 Depress the retaining clips on the rear of the headlight, and pull the unit from place (see illustration) .
Depress the clips and pull the headlight forwards - headlight removed for clarity
13 Disconnect the wiring plugs from the rear of the headlight as it’s withdrawn (see illustration) .
Disconnect the headlight wiring plug
14 Undo the upper bolt securing the engine oil level dipstick guide tube to the manifold (see illustration) .
Undo the engine oil level dipstick guide tube bolt (arrowed)
15 Undo and remove the alternator upper mounting bolt (see illustration) .
Alternator upper mounting bolt (arrowed) – viewed through the headlight aperture
16 Raise the vehicle and support it securely on axle stands. Where fitted, undo the fasteners and remove the engine undershield.
17 Working underneath, unclip the refrigerant pipe (where applicable) and move it to one side. There’s no need to disconnect the refrigerant pipe.
18 Undo the lower retaining bolt and pull the engine oil level dipstick tube from place (see illustration) .
Engine oil level dipstick guide tube lower bolt (arrowed)
19 Disconnect the wiring plug, then prise out the rubber cap and disconnect the lead from the rear of the alternator (see illustration) .
Disconnect the wiring plug, then pull away the rubber cap and disconnect the lead from the terminal stud (arrowed)
20 Undo the 2 lower mounting bolts and lower the alternator (see illustration) .
Alternator lower mounting bolts (arrowed)

Refitting

21 Refitting is a reversal of removal. Remembering to tighten the various fasteners to their specified torque where given.
Alternator mounting bolts: Nm Ibf ft
  1.4 and 1.6 litre engines 45 33
  1.8 and 2.0 litre engines 25 18
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