GolfGTIforum.co.uk
General => The garage => Topic started by: jakethesnake180 on 26 January 2017, 17:19
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Changing jobs and have to give my new Leon ST FR TSI back after 1 year of ownership 😢
I've bought an old altea to get me to work, it's stood at the minute cos I don't have to give the Leon back il the end of he month so I'm tinkering. I've just serviced it but considering swapping glow plugs as it's a bit smokey on start up when it's freezing cold. They are the type under the rocker cover. Anything I should know about before tackling the job? Is it worth changing the rocker cover gasket and glow plug wiring loom while I'm at it?
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Are they actually faulty?
If not I would leave them in place. They are easy enough to check, most likely you just need to run a scan on VCDS as they should be monitored.
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Judging by the amount of smoke and the fact that it disappears and never smokes again after about 3 seconds of running I would say so, I haven't plugged it in to diagnostics so will try that when I'm back with the car tomorrow to see what it comes up with. In all honesty I would doubt that it has registered a fault however I would say that one or all are definitely weak!
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Could be stem seals too.
Glow plugs generally work or don't, there is very little in between. You can also test them individually with a multimeter - they should be low single digit Ohms, or for a more accurate reading use a clamp amp meter around the wire going to each plug. The ECU flags faulty glow plugs pretty well usually, had the same on one of my old Golf Diesels.
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Plugged in to the diagnostics at lunch time.
Codes for Glow Plug 1, 2 and 3 stored and wouldn't clear.
Just ordered a set of NGK plugs and a new battery.
Battery is old and sluggish to turn the motor over after being left for a bit.
Going to fit tomorrow and see how we go, cheers for the help.