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post #36 of (permalink) Old 22nd May 2007
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Spark plugs

I poke to the mechanic at my local garage tonight while filling my Discovery uo with LPG.
The have been maintaining a fleet of 6 laguna II's. They have had lots of misfire/rough idle problems.

The majority of times they were caused by coils , (one car has had 12 replacements) frequently new plugs were needed as well - the faulty coils seem to damage the plugs. They also recommend replacing all the coils - one weak coil seems to reduce the effectiveness of all of them.

My car is fitted with Bosch plugs, with the 3 electrodes. These are not recommended. They recommend Equiem RFC50LZ2E or NGK BKR6EZ. NGK are usually easier to obtain.

So next step is a new set off plugs. Then possibly 3 more coils .
Currently in Ian_gary_price's garage:
2001 Renault Laguna II Authentic 1.6 16v
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