Parts for your 2018 Toyota Avensis-Universal joints

2018 Toyota Avensis universal-joints: are they used, and where?

Short answer: universal joints aren’t used in the 2018 Toyota Avensis driveline. The T27-series Avensis (through 2018) is front‑wheel drive and uses constant velocity (CV) joints on its front drive shafts, not universal joints (U‑joints). Toyota’s factory Repair Manual for the Avensis T27 (Drivetrain/Axle – Front Drive Shaft – Components and Overhaul, Toyota TechDoc) specifies inboard tripod CV joints and outboard Rzeppa CV joints. The Toyota Electronic Parts Catalogue (EPC) lists front drive shaft assemblies and CV joint kits, and there’s no propeller shaft or driveline U‑joint shown for this model. Engineering references such as the Bosch Automotive Handbook (10th ed., “Constant‑velocity joints”) and Hillier’s Fundamentals of Motor Vehicle Technology (Drive shafts and joints) also note that FWD layouts rely on CV joints because they maintain constant rotational speed at large steering and suspension angles, where a Hooke-type universal joint would introduce speed fluctuation and vibration.

So, while a “universal-joints” category isn’t relevant to the Avensis driveline, the car does have small U‑joint couplers in the steering column. The Toyota EPC lists a steering intermediate shaft assembly that incorporates U‑joints, these are typically replaced as a complete shaft rather than serviced individually.

• Why no driveline U‑joints on Avensis? CV joints handle higher operating angles smoothly, avoid cyclic speed variation, and suit the packaging of a transverse FWD powertrain.
• What to maintain instead? Keep an eye on CV boots and joints. Split boots let grease out and water in, quickly damaging the joint.

If an Avensis owner hears a rhythmic clicking on full lock, that’s classic outer CV joint wear, not a U‑joint. Vibration under load can hint at an inner CV issue. During routine servicing, a quick look under the car for torn CV boots, sling marks of grease on the underside, or play in the shafts goes a long way. For the steering, a notchy feel around centre, clunks over bumps felt through the column, or visible rust at the lower coupling can point to a worn steering intermediate shaft U‑joint, that assembly is replaced as a unit, observing SRS airbag precautions and column alignment as per the Toyota Repair Manual.

Technical references consulted:- Toyota Avensis (T27, 2015–2018) Repair Manual, Drivetrain/Axle – Front Drive Shaft – Components/Removal/Installation – Toyota Motor Corporation (Toyota TechDoc).- Toyota Electronic Parts Catalogue (EPC), Avensis T27 (2018): Front Drive Shaft, Steering Column & Shaft – Shaft Assy, Steering Intermediate.- Bosch Automotive Handbook, 10th Edition – Constant‑velocity joints versus Hooke (universal) joints.- Hillier’s Fundamentals of Motor Vehicle Technology – Drive shafts and joints chapters.

• Does the 2018 Toyota Avensis have universal joints?
  Yes, but only in the steering column’s intermediate shaft. The driveline uses CV joints on the front drive shafts, so there are no rear prop shaft U‑joints to service on this FWD model.
• What should be serviced instead of driveline U‑joints?
  The CV boots and joints. Inspect the rubber boots at regular services (around 10,000–15,000 km intervals). Replace any torn boots promptly and check for clicking on full lock or vibration under acceleration, which can indicate CV wear.
• How do you spot a worn steering column U‑joint on an Avensis?
  Look for a notchy or stiff feel, clunks through the wheel, or visible corrosion at the lower coupling. The fix is usually to replace the steering intermediate shaft assembly, it isn’t a grease-and-go item. Follow Toyota procedures to keep the wheel straight and protect the SRS system.