Glow Plug Light (Diesel) on a Mitsubishi Outlander PHEV
This is usually informational. Address it at your convenience.
What the Glow Plug Light (Diesel) Means on a Mitsubishi Outlander PHEV
The glow-plug light on your diesel Mitsubishi Outlander PHEV is your cue to wait a couple of seconds before starting in cold weather. A flashing light after the engine is running, however, indicates a fault the ECU wants checked.
How Urgent Is the Glow Plug Light (Diesel)?
Urgency level for this indicator on the Mitsubishi Outlander PHEV: low. Reading the colour is the fastest gut-check — a red symbol asks you to stop and investigate quickly, while amber or yellow means schedule a check soon rather than immediately. Green and blue symbols are simply telling you a system is active. Whatever the colour, the safest habit is to note when the Glow Plug Light (Diesel) appeared, how the Mitsubishi Outlander PHEV is behaving, and whether the light is steady or flashing, because a flashing warning almost always means act now.
Common Symptoms Alongside the Glow Plug Light (Diesel)
Alongside the Glow Plug Light (Diesel), Mitsubishi Outlander PHEV owners commonly report a handful of related signs. Some are obvious, others easy to miss until you pay attention. Keeping a short mental (or written) log of what the Mitsubishi Outlander PHEV does when the light is on gives whoever performs the repair a huge head start and can save you money on diagnostic time.
- Light on briefly at cold start (normal)
- Flashing light after warm-up (fault)
- Hard starting when cold
- Rough running or white smoke on cold mornings
What Causes the Glow Plug Light (Diesel) to Come On?
The Glow Plug Light (Diesel) on the Mitsubishi Outlander PHEV can be triggered by several conditions, and experienced technicians work through them from most to least likely. Some causes are trivial and cost almost nothing to correct, while others require replacing a sensor or component. The list below reflects what actually turns this light on in the real world, so you can gauge whether you are likely facing a quick fix or a workshop visit.
- Normal pre-heat cycle (steady, brief)
- One or more failed glow plugs
- Glow plug relay fault
- Crankshaft/camshaft sensor issue
- Related engine management fault
How to Fix the Glow Plug Light (Diesel) on a Mitsubishi Outlander PHEV
The right way to clear the Glow Plug Light (Diesel) on a Mitsubishi Outlander PHEV is to fix the underlying cause, not just reset the symbol. Work through the steps below in order — they move from the simplest checks any driver can do to the diagnostic work best left to a scan tool. Following this sequence prevents the classic mistake of replacing expensive parts before ruling out the cheap, common problems first.
- At cold start, wait for the light to go out before cranking
- If it flashes, scan for glow-plug and engine codes
- Test each glow plug for resistance/continuity
- Replace failed plugs (ideally as a set) and check the relay
- Clear codes and confirm easy cold starts
Is It Safe to Drive With the Glow Plug Light (Diesel) On?
Whether it is safe to keep driving your Mitsubishi Outlander PHEV with the Glow Plug Light (Diesel) on comes down to urgency (low) and behaviour. As a rule, if the light is red or flashing, or the Mitsubishi Outlander PHEV is running poorly, stop somewhere safe and arrange help rather than pushing on. If the light is amber and the car drives normally, you generally have time to reach a workshop — but 'have time' is not the same as 'ignore it', so book a check promptly.
Diagnostic Trouble Codes Linked to the Glow Plug Light (Diesel)
If you scan a Mitsubishi Outlander PHEV showing this light, these are the OBD-II trouble codes most commonly associated with it. The code you actually retrieve is what pinpoints the repair.
| Code | Meaning |
|---|---|
P0335 |
Crankshaft Position Sensor Circuit The crankshaft position sensor signal is faulty, which can cause stalling or a no-start condition. |
Professional Mechanic Tips
Do not ignore a flashing glow light; on many diesels it doubles as a general engine fault warning, so scan it rather than guessing.
Frequently Asked Questions
Why is the Glow Plug Light (Diesel) on in my Mitsubishi Outlander PHEV?
On a Mitsubishi Outlander PHEV, the Glow Plug Light (Diesel) comes on because a monitored value crossed a threshold the car considers abnormal. It could be a simple, inexpensive cause or a genuine fault — the only way to be sure is to scan the vehicle and interpret the codes rather than guess from the symbol alone.
Can I keep driving with the Glow Plug Light (Diesel) on?
It depends on the urgency (low) and how your Mitsubishi Outlander PHEV is behaving. If the light is red or flashing, or the car drives differently, stop safely and get help. If it is amber and everything feels normal, you can usually drive to a workshop soon — just do not put off the diagnosis.
How much does it cost to fix the Glow Plug Light (Diesel) on a Mitsubishi Outlander PHEV?
There is no single price for the Glow Plug Light (Diesel) on a Mitsubishi Outlander PHEV; it ranges from a no-cost adjustment to a component replacement. The honest way to control cost is to diagnose the exact code before authorising any repair, so you only pay to fix what is actually wrong.
Will the Glow Plug Light (Diesel) reset itself on a Mitsubishi Outlander PHEV?
Sometimes the Glow Plug Light (Diesel) on a Mitsubishi Outlander PHEV clears on its own once the condition that triggered it no longer exists — for example after several good drive cycles. More often, though, the light stays on until the underlying fault is repaired and the code is cleared, so treat a self-clearing light as a reason to still investigate.