kevinfischer7

Lexus IS glow plug issue

Hey, my 2009 Lexus IS diesel is throwing me for a loop. The preheating lamp won't go off, and the error memory has a fault stored. Mileage is at 245337 km. Pretty sure it's a defective glow plug. Anyone else seen this?

A 2009 Lexus IS diesel is experiencing an issue where the preheating lamp remains on, and a fault is stored in the error memory, suggesting a defective glow plug. This problem is associated with symptoms like rough idling. The suggested solution is to have the glow plugs checked and potentially replaced at a workshop, as similar cases have been resolved by addressing the glow plugs.

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4 comment(s)

Sounds familiar. I've got a Lexus IS too, though can't remember which year. Had similar symptoms a while back – engine light on, rough idle sometimes. Worth checking those glow plugs.

Rough idle too, huh? Was it definitely the glow plugs in your case? Any idea on the repair cost?

Yeah, turned out to be the glow plugs. Best get it checked at a workshop, as diagnosing without the proper tools is a pain. My bill was around 440€, including parts and labor.

Cheers for the insight. I'll get it booked in. Seems like I'm in for glow plugs too.

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LEXUS

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