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Special tools and workshop equipment required
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◆ Jointed spanner 3220
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◆ 2 test leads with a diameter of at least 2.5 mm2
Test sequence
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‒ Switch off ignition.
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‒ Remove engine cover panel => Page 28-2.
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‒ Pull glow plug connector off glow plug.
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‒ Remove glow plugs with jointed spanner 3220.
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‒ Place the glow plug which is to be tested on a fireproof surface.
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‒ Connect the connecting pin of the glow plug to the positive terminal of a fully charged 12 V battery.
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‒ Connect the threaded section of the glow plug to the negative terminal of the battery.
Notes:
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◆ Connect the glow plug using test leads which have a diameter of at least 2.5 mm2.
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◆ The connector clamps on the test leads must be robust and securely fitted.
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‒ Check the glow plug as it is being activated.
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‒ If the glow plug does not glow or if only part of the pin glows, renew the glow plug.
Tightening torque
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Component
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Nm
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Glow plugs
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15
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