Parts for your 2015 Mitsubishi Lancer-Drive belt

2015 Mitsubishi Lancer drive-belt: what it does and when to replace it

Based on technical sources — Mitsubishi Motors Service Manual for Lancer (MY2015), the Mitsubishi ASA electronic parts catalogue, and Australian application guides from major belt manufacturers (Gates/Dayco) — the 2015 Mitsubishi Lancer is fitted with accessory drive-belts. So yes, a drive-belt is relevant on this model. Petrol variants (2.0L 4B11 and 2.4L 4B12) use a multi‑rib belt to run accessories such as the alternator (and, on many trims, the power steering pump), plus a separate stretch belt for the A/C compressor. The water pump on these petrol engines is timing‑chain driven, not by the accessory belt, which trips some owners up.

In everyday terms, the drive-belt keeps the electrics charging, the A/C cold, and — where fitted — the steering light. If the belt slips or fails, you can see a battery warning light, lose A/C, or experience heavy steering on hydraulic‑assist cars. That’s why regular checks are baked into Mitsubishi’s service schedule.

Servicing tips the workshop crowd live by for the 2015 Lancer:

• Inspect the belt at each service (typically every 12 months/15,000 km in AU/NZ). Look for cracks, missing ribs, glazing, fraying, and rubber dust.
• Listen for cold‑start squeal, chirps on acceleration, or a whir from the tensioner/idler — all hint at wear or poor tension.
• Spin and check the automatic tensioner and idler bearings, replace them with the belt if they’re noisy or loose.
• Use the correct spec belt (rib count/length per VIN). The A/C belt is a stretch‑fit type on many models and needs the proper installation tool, don’t lever it on with a screwdriver.
• Many owners replace belts around 90,000–120,000 km, but condition rules. Replace earlier if there’s noise, cracking, or charging issues.

A couple of variant notes: some trims use electric power steering (no PS pump on the belt), while others have a belt‑driven hydraulic pump. Either way, the main accessory belt still drives the alternator, and the separate A/C belt handles the compressor. Following the factory procedure and torque specs from the Mitsubishi service manual will keep everything sweet under the bonnet.

Popular questions

How often should the drive-belt be replaced on a 2015 Lancer?
There isn’t a single kilometre figure that suits every car. In AU/NZ conditions, have it inspected at each service (about every 12 months/15,000 km). Replace if there are cracks, glazing, rib chunking, squeal, or if the tensioner/idlers are tired. Many workshops see reliable service out to roughly 90,000–120,000 km, but condition is the real decider. The A/C stretch belt should be renewed if removed.

What belt type does my 2015 Lancer use?
Most petrol models use a multi‑rib (serpentine) belt for the alternator (and often power steering), plus a separate stretch‑fit belt for the A/C compressor. Exact rib count and length vary by engine and equipment, so match by VIN using the Mitsubishi parts catalogue or a reputable AU/NZ belt application guide.

Does the drive-belt run the water pump on the 2015 Lancer?
On the common 2.0L (4B11) and 2.4L (4B12) petrol engines, the water pump is driven by the timing chain, not the accessory drive-belt. That said, the drive-belt is still critical for the alternator and A/C, and for the power steering pump on hydraulic‑assist variants.