Parts for your 1989 Mitsubishi Pajero-Brake pad wear indicator

1989 Mitsubishi Pajero Brake Pad Wear Indicator

Based on technical references, the 1989 Mitsubishi Pajero (first-gen L040 series) doesn’t use an electronic brake pad wear sensor or dash warning light. Instead, the front disc pads are fitted with a mechanical wear indicator tab (often called a squealer). This is documented in the Mitsubishi Factory Service Manual (1983–1991 Pajero/Montero, Group 35A: Front Brakes), which illustrates pads with a wear indicator plate, and there’s no pad-wear circuit shown in the wiring sections. Gregory’s Pajero 1983–1991 Repair Manual and Mitsubishi ASA parts catalogues back this up, listing front pads with an integral wear indicator and no sensor harness. Rear brakes on most 1989 Pajeros are drums, so there’s no pad wear indicator at the back.

The brake-pad-wear-indicator on a 1989 Mitsubishi Pajero is a simple metal tab on the front pads that starts to squeal when the friction material gets low. It’s there to give a clear, audible heads-up before metal-to-metal contact. There’s no fancy dash light, just a straightforward noise that says it’s time to book a pad change. That suits the Pajero’s tough, go-anywhere brief—mechanical indicators keep working through mud, water and corrugations with minimal fuss.

As part of regular servicing, it pays to keep an eye (and ear) on that indicator and the overall front brake setup:

• Inspect pad thickness at every service. Replace pads when the friction material is down to around 2–3 mm, or earlier if the wear tab has started singing.
• Make sure the wear indicator tab is on the correct pad and positioned on the leading edge for the direction of rotation. Left and right can differ—fitment matters for a proper warning.
• Clean and lube slide pins with the right high-temp brake grease, check anti-rattle clips and shims, and ensure the caliper moves freely. Sticky slides cause uneven wear and can silence the indicator on one side while the other side is already thin.
• If you hear a squeal, don’t ignore it. Inspect both front wheels—pads often wear differently side to side when towing, off-roading or carrying loads.
• After fitting pads, bed them in as recommended to avoid glazing and chatter. Don’t cut the tab off to stop a squeal—that defeats the safety feature.
• For vehicles doing beach work or creek crossings, inspect more often, grit can accelerate wear.

There’s no separate maintenance on the indicator itself—it’s integral to the pad. If the tab is broken or missing, replace the pad set. While you’re there, check rotor condition and thickness against spec for a smooth, confident pedal with no dramas.

Does a 1989 Pajero have a dash warning light for worn brake pads?

No. The brake warning lamp is for the handbrake and low fluid level. Pad wear is signalled by a mechanical squeal tab on the front pads. If the light’s on, check fluid and the handbrake switch, if you’re hearing a squeal while driving, inspect the front pads.

Where is the brake pad wear indicator on this model?

On the front brake pads only. It’s a small metal tab attached to one pad per caliper. When fitted correctly (leading edge), it contacts the rotor once the friction material gets low and makes a high-pitched noise.

How often should the wear indicator and pads be checked?

Every 10,000 km or six months works well for normal use, and more often if towing or off-roading. The indicator isn’t a separate service item—if it’s bent, missing or has started squealing, plan for a pad replacement and a thorough brake inspection.