Engine - Oil Leak/Camshaft DTC's Stored In Memory
15 08 092005587/6
November 7, 2008. Supersedes Technical Service Bulletin Group 15 number 08-08 dated 2005587/5 for reasons listed below.
Vehicle Information
15 Oil leak and/or camshaft DTCs stored - 3.0L
Condition
- Oil leak at cylinder head around the camshaft adjuster(s).
- Oil leak around toothed belt drive coming from camshaft adjuster(s).
- One or more of the following DTCs may be present:
- DTC P1519 (17927 Intake Camshaft Control, Bank 1 - Malfunction).
- DTC P1522 (17930 Intake Camshaft Control, Bank 2 - Malfunction).
- DTC P0015 (16399 B Camshaft Position, Bank 1 - Timing over-retarded).
- DTC P0025 (16409 B Camshaft Position, Bank 1 - Timing over-retarded).
- and/or:
- DTC P1996 (18404 Friction too high, code E1; Intake - Bank 1).
- DTC P1997 (18405 Friction too high, code A1; Exhaust - Bank 1).
- DTC P1998 (18406 Friction too high, code E2; Intake - Bank 2).
- DTC P1999 (18407 Friction too high, code A2; Exhaust - Bank 2).
Technical Background
Gaskets and/or sealing rings of camshaft adjusters and/or timing case might be leaking.
The internal bolts of camshaft adjuster(s) might have a reduced torque.
An oil leak also might cause one or more of the mentioned DTCs due to a reduced operating oil pressure in the camshaft adjusters.
Production Solution
Not applicable.
Service
If DTC P1519, P1522, P0015, or P0025 is stored:
Figure 1:
1. Check for a DTC for a camshaft position sensor (P0340 - P0348, P0365, P0368, P0390 - P0393).
Do not replace the camshaft adjusters (A) or the camshaft adjustment housings (B) if any camshaft position sensor DTC is present.
2. Follow Guided Fault Finding test plan for diagnosis.
3. Perform TSB 2005581 if applicable for affected VIN.
4. Check for sufficient oil pressure. If oil pressure is too low, also check for oil leaks from or around the camshaft adjusters. These DTCs can also be caused by a malfunctioning camshaft position sensor (G40/G163/G300/G301).
If DTC P1996, P1997, P1998 or P1999 is stored:
1. Do not replace the camshaft adjusters (Figure 1, A) or camshaft adjustment housings (Figure 1, B) because of these DTCs.
2. Follow Guided Fault Finding test plan for diagnosis.
3. Erase the DTC memory. These DTCs only occur during the break-in period of the cylinder head and are not causing the MIL.
4. Check for sufficient oil pressure. If the oil pressure is too low, also check for oil leaks from/around the camshaft adjusters.
5. In case of an oil leak from a camshaft adjuster, perform the following repairs only on the affected side.
a. Do not replace the camshaft adjusters (Figure 1, A) or camshaft adjustment housings (Figure 1, B)
b. Replace gasket (Figure 2, 1) and O-rings (Figure 2, 3) between camshaft adjustment housing (Figure 2, B) and cylinder head. Replace both camshaft sealing rings (Figure 2, 2) (See Repair Manual, Group 15, "Camshaft and camshaft adjusters, removing and installing")
Before Reinstalling the Valve Covers
1. Retorque all five outer bolts (Figure 3, 3) on all four camshaft adjusters to 15 Nm. (The bolt heads are located on the back side of the camshaft adjuster gears.)
2. Replace missing or damaged bolts (part number WHT 003 121).
3. Replace caps (Figure 3, 4) and O-Rings (Figure 3, 5) and secure with securing ring (See Repair Manual, Group 15, "Camshaft and camshaft adjusters, removing and installing.")
4. Reassemble removed components and complete the repair.
Warranty
When procedure applies to vehicles under warranty, use the following:
SAGA
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual. Claims are subject to review or audit by Audi Warranty.
Required Parts and Tools
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.