2022-2024 Alfa Romeo Stelvio Timing Cover Oil Leak TSB 09-013-25

Owners of certain 2022-2024 Alfa Romeo Stelvio vehicles may experience an "Oil leaking from the timing cover". This issue is addressed by Technical Service Bulletin (TSB) 09-013-25, which details the necessary inspection and repair steps for this specific condition. The bulletin applies to vehicles equipped with the 2.0L 280 HP I4DI Turbo Engine (Sales Code EC2) built on or before May 02, 2024.

Symptoms

The primary symptom customers may notice is "Oil leaking from the timing cover". This visual indication suggests a potential issue with the engine's timing cover integrity.

Cause of the Oil Leak

The root cause identified for the Alfa Romeo Stelvio timing cover oil leak is typically "Loose timing cover fasteners". Over time, these fasteners can loosen, compromising the seal of the timing cover and leading to oil seepage.

Diagnosis

If you observe an oil leak from the timing cover, a qualified technician will first confirm the fault. It is crucial to accurately identify the source of the leak, ensuring it is specifically from the timing cover and not from the cylinder head, cylinder block, or the top of the crankcase. Technicians are advised to document the intervention with photographs for proper diagnosis.

Repair Procedure Summary

The repair for the Alfa Romeo Stelvio timing cover oil leak involves several steps, as detailed in TSB 09-013-25:

1. The air cleaner assembly and serpentine belt are removed to gain access to the timing cover.
2. Technicians will mark each timing cover fastener with a paint pen to note its current rotational position.
3. The fasteners are then loosened and re-torqued to a specification between 8.6 Nm (6.343 ft lb) and 11.0 Nm (8.113 ft lb).
4. If the residual torque of a fastener is found to be below 8.6 Nm, a more precise re-torquing procedure is followed: fasteners are loosened, then tightened to 5 Nm (3.687 ft lb) and an additional 40° turn is applied, resulting in a final torque between 11.0 Nm (8.113 ft lb) and 16.0 Nm (11.801 ft lb). Alternatively, a mechanical torque wrench can be used to apply 10.0 Nm (7.376 ft lb). A specific tightening sequence (refer to Fig. 1 in the TSB) must be followed.
5. After re-torquing, the affected area is cleaned, and engine oil is topped off.
6. The serpentine belt and air cleaner assembly are reinstalled.
7. The vehicle is then idled for at least 10 minutes (or driven for 10 km / 6 miles) to check if the leak has been resolved.
8. If oil continues to leak, the timing cover will be resealed. This involves removing and reinstalling the timing cover with new sealant.
9. Finally, the engine oil and filter are changed.

Required Tools and Parts

To perform this repair, technicians may require specific tools and parts:

Special Tools/Equipment:

• Installer, Oil Seal (Ref. No. 9506)
• Measuring container for Coolant Filling
• Retaining button removal tool (Ref. No. 1823015000)
• Remover, Fuel Rail (Ref. No. 2044500140)
• Guide, Fuel Rail Installer (Ref. No. 2044400140)
• Holder, Front Damper MAIR (Ref. No. 2024700090)

Spare Parts:

• NPN Paint Pen
• Seal (Crankshaft Oil) - Part No. 2142125000 / MOPAR 50048546 - EMEA
• Bolt (Crankshaft Damper Pulley) - Part No. 06513080AA / MOPAR 50056383 - EMEA
• Filter (Oil) - Part No. 04892339BE / MOPAR 50057786 - EMEA
• Tube (Fuel Rail Supply) - Part No. 04893751AA / MOPAR 50050780 - EMEA
• Seal (Fuel Injector To Valve Cover) - Part No. 05281278AA / MOPAR 50050799 - EMEA
• Stud (Timing Cover) - Part No. 06512266AA / MOPAR 50053296 - EMEA
• Antifreeze (Coolant) - Part No. 68163849AB / MOPAR 53380087 - EMEA
• Gasket (Cylinder Head Cover) - Part No. 68217568AA / MOPAR 50050387 - EMEA
• Gasket (Spark Plug Well) - Part No. 68217569AA / MOPAR 50050388 - EMEA
• Oil (Engine (0w30)) - Part No. 68523988AA
• Seal Kit (Fuel Injector) - Part No. 68436674AA / MOPAR 155252240 - EMEA

Warranty Information

This repair, identified by labor operations such as 09-10-10-98 (re-torque bolts), 09-10-10-99 (reseal Stelvio), or 09-10-10-9A (reseal Giulia), is reimbursable within the provisions of the warranty.

What Owners Should Know

If you suspect an Alfa Romeo Stelvio timing cover oil leak, it is important to have your vehicle inspected by an authorized service center. Early diagnosis and repair can prevent further complications. Ensure that the technician specifically identifies the source of the oil leak to ensure the correct repair is performed.

NHTSA ID: 11018862