🔧 Trax - Serpentine Belt Replacement

The serpentine belt drives key accessories like the alternator and A/C. On your Trax, the easiest access is typically through the right-front wheel well so you can reach the belt tensioner and route the new belt correctly.

Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours

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⚠️ Safety & Precautions

• ⚠️ Work on level ground and support the SUV with jack stands before going under/behind the wheel.
• ⚠️ Keep hands and tools clear of pulleys; never run the engine with fingers near the belt.
• ⚠️ Let the engine cool—hot parts near the belt can burn you.
• ⚠️ Do not put your fingers between the belt and pulleys while releasing the tensioner.
• Battery disconnect is not required for this job, but keep the key away from the vehicle so nobody cranks it.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Mechanic gloves
• Wheel chocks
• Floor jack (rated 2-ton minimum)
• Jack stands (rated 2-ton minimum)
• 19mm socket
• Breaker bar (1/2")
• Torque wrench (20–200 Nm range)
• 15mm socket
• Ratchet (3/8" or 1/2")
• 7mm socket
• 10mm socket
• Trim clip removal tool
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Serpentine belt - Qty: 1

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Install wheel chocks behind the rear tires.
• Open the hood and locate the belt routing diagram sticker (often on the radiator support/underhood area). If you don’t see one, take a clear photo of the belt routing before removal.
• Tip: Draw the routing on paper first.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift the right-front corner and remove the wheel

• Use a 19mm socket and breaker bar (1/2") to slightly loosen the right-front wheel lug nuts (do not remove yet).
• Lift the right-front corner using a floor jack (rated 2-ton minimum) at the proper lift point.
• Set the SUV securely on jack stands (rated 2-ton minimum).
• Remove the lug nuts with a 19mm socket and take the wheel off.

Step 2: Remove the right-front inner splash shield (wheel well liner)

• Use a trim clip removal tool to pop out the plastic push-clips.
• Use a 7mm socket and/or 10mm socket to remove any small screws/bolts holding the liner.
• Peel the liner back enough to clearly see the belt, pulleys, and the belt tensioner.
• Tip: Keep clips in a cup so you don’t lose them.

Step 3: Record the belt routing

• Use a flashlight to find the underhood belt-routing diagram and compare it to what you see.
• If the sticker is missing, use the flashlight to take a photo of the belt path from the wheel well.
• Identify the belt tensioner (a spring-loaded arm with a pulley). The tensioner is what you rotate to loosen the belt.

Step 4: Release belt tension and remove the old belt

• Place a 15mm socket on the tensioner’s hex (bolt head built into the tensioner arm).
• Use a ratchet (3/8" or 1/2") to rotate the tensioner to relieve belt tension.
• While holding the tensioner rotated, slide the belt off the easiest-to-reach smooth pulley.
• Slowly let the tensioner return to its resting position (do not let it snap back).
• Remove the belt from the remaining pulleys by hand.

Step 5: Inspect pulleys and the tensioner before installing the new belt

• Spin each pulley by hand and feel for roughness or wobble (alternator, A/C, idlers, tensioner pulley).
• Check the tensioner arm movement by rotating it with the 15mm socket and ratchet; it should move smoothly and spring back firmly.
• If you hear grinding or feel looseness, stop here—those parts may need replacement before the new belt goes on.

Step 6: Install the new belt (route it exactly like the diagram)

• From the routing diagram/photo, route the new belt around all pulleys except one easy-to-reach pulley last.
• Make sure the belt ribs are fully seated in the grooved pulleys (no rib hanging off the edge).
• Rotate the tensioner again using the 15mm socket and ratchet.
• Slip the belt over the final pulley, then slowly release the tensioner.
• Re-check every pulley with the flashlight: the belt must be centered and fully seated.
• Tip: If it won’t slip on, routing is usually wrong.

Step 7: Reinstall the splash shield and wheel

• Reposition the liner and reinstall fasteners using the 7mm socket, 10mm socket, and trim clip removal tool (for clips).
• Install the wheel and hand-thread lug nuts.
• Lower the SUV off the jack stands using the floor jack.
• Tighten lug nuts in a star pattern using a torque wrench: Torque to 140 Nm (103 ft-lbs).

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✅ After Repair

• Before starting, do one final visual check with a flashlight that the belt is seated on every pulley.
• Start the engine and watch the belt for 20–30 seconds. It should run smoothly with no wandering or squeal.
• Turn the A/C on and off and listen for noise changes; shut down immediately if you hear slapping, chirping, or grinding.
• After a short test drive, re-check belt alignment through the wheel well.

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💰 DIY vs Shop Cost

Shop Cost: ₹4,000-₹9,000 (parts + labor)

DIY Cost: ₹1,000-₹3,000 (parts only)

You Save: ₹3,000-₹6,000 by doing it yourself!

Shop labor rates vary but typically run ₹1,000-₹2,500/hour. This repair takes a shop approximately 1.0-1.5 hours.

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🎯 Ready to get started?

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