Technical Car/Motor Issues > Ford Focus II - 07 1.8 Glow plugs Miscellaneous
Thread Author: Cpt. Flack Replies: 3
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New Thu 25 Nov 10 22:18 
 Ford Focus II - 07 1.8 Glow plugs - Cpt. Flack
At what interval should diesel glow plugs be replaced?
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New Fri 26 Nov 10 08:14 
 Ford Focus II - 07 1.8 Glow plugs - carmalade
I don't think there is any suggested change interval for glow plugs .Just replace if or when they fail.Glow plugs on common rail diesels usually only work when ambient temp is very low,often below 4c or less.hth
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New Fri 26 Nov 10 14:28 
 Ford Focus II - 07 1.8 Glow plugs - DP
As carmalade says, glowplugs are not a service item. They are simply replaced when they become faulty. It is also perfectly acceptable to replace them individually if you can establish which one(s) have died.

Many modern diesels will put an engine management or other warning light on when a glowplug fails, as glowplugs are mostly used for emission control purposes these days. Most common rails will start happily without glowplug assistance unless the temperature is significantly below freezing.

Glowplugs are typically energised after cold starting for burn efficiency / emissions purposes.
Last edited by: DP on Fri 26 Nov 10 at 14:29
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New Fri 26 Nov 10 18:27 
 Ford Focus II - 07 1.8 Glow plugs - Cpt. Flack
Cheers for the replies guys.
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