🔧 Crosstrek - Timing Belt Replacement

Your Crosstrek’s 2.0L FB20 engine does not use a timing belt. It uses a timing chain, which is internal and typically not a routine maintenance replacement item.

Assumption: You meant the engine accessory drive belt (serpentine belt), which is the belt you can actually replace as normal DIY maintenance.

Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours

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⚠️ Safety & Precautions

• 🧤 Work on a cool engine; hot parts can burn you.
• 🧯 Keep fingers and tools away from pulleys; the belt area can pinch.
• 🔌 No battery disconnect is required for this job, but keep the key away from the vehicle so it can’t be started accidentally.
• 🧱 If you raise the front, support the car with jack stands on solid ground; never rely on a jack alone.

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🔧 Required Tools

You'll need the following tools for this repair:

• Wheel chocks
• Floor jack (rated 2-ton minimum)
• Jack stands (rated 2-ton minimum)
• Safety glasses
• Nitrile gloves
• Flashlight
• 10mm socket
• 12mm socket
• 3/8" drive ratchet
• 6" extension (3/8" drive)
• 14mm box wrench
• Torque wrench (10-60 Nm range)
• Trim clip removal tool

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Accessory drive belt (serpentine belt) - Qty: 1
• Engine undercover clips - Qty: 2-6 (only if any break)

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📋 Before You Begin

• 🅿️ Park on level ground and set the parking brake.
• 🧱 Place wheel chocks behind the rear wheels.
• 🔦 Have your flashlight ready so you can confirm the belt ribs are seated in every pulley groove.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the lower engine undercover (splash shield)

• Raise the front safely using a floor jack (rated 2-ton minimum) and support it with jack stands (rated 2-ton minimum).
• Remove the undercover bolts using a 10mm socket and 3/8" drive ratchet.
• Pop out plastic clips using a trim clip removal tool.
• Reinstall later and Torque to 7.5 Nm (66 in-lb) for the 10mm undercover bolts.

Step 2: Locate the belt routing

• Use a flashlight to look up at the front of the engine and identify each pulley the belt runs around.
• Take a quick photo before removal.

Step 3: Release belt tension

• Find the automatic belt tensioner.
• Place a 14mm box wrench on the tensioner’s hex and rotate it smoothly to relieve tension. (A tensioner is a spring-loaded arm that keeps the belt tight.)
• While holding the tensioner rotated, slide the belt off the easiest-to-reach smooth pulley.

Step 4: Remove the old belt

• Remove the belt fully by hand.
• Inspect pulleys with a flashlight for cracks, wobble, or rough bearings (a rough “gritty” feel when turned by hand).

Step 5: Install the new belt

• Route the new belt around the pulleys the same way as your photo.
• Make sure the belt ribs sit fully in the grooved pulleys; use a flashlight to confirm alignment.
• Use the 14mm box wrench to rotate the tensioner again, slip the belt onto the final pulley, then slowly release the tensioner.
• Release the tensioner slowly to avoid snapping.

Step 6: Reinstall the undercover

• Reinstall clips and bolts using a trim clip removal tool (for clips) and 10mm socket with 3/8" drive ratchet (for bolts).
• Torque to 7.5 Nm (66 in-lb) for the 10mm undercover bolts using a torque wrench (10-60 Nm range).
• Lower the vehicle safely using the floor jack.

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✅ After Repair

• 🔍 Before starting, do one last check with a flashlight that the belt is centered on every pulley.
• 🚗 Start the engine and let it idle for 30-60 seconds while you listen for squeal or slapping.
• 🛑 Shut it off and re-check belt seating if anything looks or sounds off.

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💰 DIY vs Shop Cost

Shop Cost: ₹1,500-₹4,000 (parts + labor)

DIY Cost: ₹800-₹2,000 (parts only)

You Save: ₹700-₹2,000 by doing it yourself!

Shop labor rates vary but typically run ₹800-₹2,000/hour. This repair takes a shop approximately 0.5-1.0 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.