XClutch 05-07 Volvo S40 T5 2.5L Stage 1 Sprung Organic Clutch Kit

Most 2005-2007 Volvo S40 T5 owners shopping for a clutch are in one of two spots: the original clutch is simply worn out after years of commuting, or a software tune has added enough boost that the stock disc now slips in the higher gears. XClutch part number XKFD24637-1A is built for both of those drivers. It is a Stage 1 single-disc kit with a sprung organic friction disc, the least aggressive and most street-friendly option XClutch makes for the turbocharged 2.5-liter five-cylinder, so the car still drives like a Volvo in traffic.

What a Stage 1 sprung organic clutch does in an S40 T5

The clutch sits between the engine's flywheel and the six-speed manual gearbox. When the pedal is up, the diaphragm spring in the pressure plate clamps the friction disc against the flywheel and engine torque passes through the disc hub into the input shaft. XClutch describes Stage 1 as its most popular upgrade, aimed at street cars with light modifications. The organic facing engages progressively, much like the factory clutch, and the sprung hub has torsion springs that absorb driveline shock on takeoff and during quick shifts.

XClutch's published specification for this kit lists a 9-7/16 inch organic disc on a sprung hub, a 1 inch, 23-spline input, and a torque capacity of 440 ft-lb including its safety factor, rated for street use. That headroom is the reason this kit exists: it covers a stage one or stage two tune on the T5 without the abrupt bite of a ceramic or puck disc.

Symptoms that point to a worn or overpowered clutch

• Engine speed climbs without matching road speed in fifth or sixth under full boost
• Engagement point creeping toward the top of the pedal travel
• A hot, burnt smell after a steep hill start or towing
• Shudder or chatter pulling away from a stop
• A chirp or growl that changes when the pedal is pressed, which usually means the release bearing
• Gears that grind with the pedal fully down, often a hydraulic or air-in-the-line issue rather than the disc itself

How to confirm the clutch is the problem

Run a slip test: in fifth gear at about 2,000 rpm, go to full throttle. If the tachometer jumps ahead of road speed, the disc is slipping. Before ordering, check the clutch hydraulic fluid level and condition and bleed out any air, because a soft or sinking pedal causes drag that is easy to mistake for a worn disc. Scan for engine codes too, because a boost leak or misfire can feel like a weak clutch. Our manual transmission repair cost guide explains what the labor side of a clutch job usually runs so you can budget the whole repair.

Fitment

This listing covers the 2005-2007 Volvo S40 T5 with the 2.5L turbo engine and a manual transmission. It does not fit automatic cars or the non-turbo 2.4i. Volvo used more than one manual gearbox and release arrangement across its P1 and P2 platforms, so match the input spline count and your release system to the specification above, or send us the year and VIN and we will check it before it ships. If the car is tuned well past stage two or sees track days, look at the XClutch Stage 2R ceramic kit for the same car or the SPEC Stage 2+ kit; for a near-stock replacement feel from another maker there is the SPEC Stage 1 kit.

Install notes

• Machine or replace the flywheel. XClutch's warranty requires it, and a fresh organic disc on a glazed surface will chatter. The spec lists a -0.375 inch flywheel step, so a machinist should hold that dimension.
• Replace the release bearing and pilot bearing while the gearbox is out, and look for oil from the rear main seal or gearbox input seal, which will contaminate an organic facing quickly.
• Grease only the input splines lightly, keep the friction faces clean, center the disc with an alignment tool such as our 11-piece universal alignment kit, and tighten the pressure plate bolts gradually in a cross pattern.
• Bleed the hydraulics with fresh fluid of the grade on the reservoir cap and confirm the pedal releases fully before driving.
• Break the disc in gently for the first several hundred miles: easy starts, no launches and no full-boost pulls.

Gear oil is not part of a clutch job, but if the gearbox is out anyway, it is the right time to drain and refill it with the manual transmission fluid Volvo specifies for your car.

Will XKFD24637-1A hold the power from a tune on my S40 T5?

XClutch rates this kit at 440 ft-lb of torque capacity including its safety factor, and positions Stage 1 for street cars with light modifications. It suits typical software tunes; for heavy hardware upgrades or track use, a ceramic Stage 2 or Stage 2R kit is the better match.

Does it fit a 2005-2007 S40 2.4i or an automatic?

No. This kit is for the S40 T5 2.5L turbo with a manual gearbox. The 2.4i and automatic cars use different drivetrains.

Do I have to resurface the flywheel?

Yes. XClutch's warranty requires the flywheel to be machined or replaced, and the specification lists a -0.375 inch step, so give that figure to the machine shop.

Will it feel heavier than the stock clutch?

Stage 1 organic kits are the most street-friendly option in the XClutch range, and the sprung organic disc engages progressively. Expect a feel close to stock rather than an on-off race clutch.

What else should I replace at the same time?

The release bearing and pilot bearing, any leaking rear main or input seal, and the clutch fluid. If the slave or master cylinder is weeping, replace it now rather than pulling the gearbox again.

• Automatic vs. Manual Transmission Repair Cost: What to Actually Expect