Engine - Oil Consumption
17 Oil consumption measurement - R8
17 09 13
2020666/2
August 6, 2009.
Supersedes Technical Service Bulletin Group 17 number 09-08 dated May 21, 2009 for reasons listed below.
Affected Vehicles
138
Condition
REVISION HISTORY
Customer states oil consumption is higher than stated in his vehicle's Owner's Manual.
Technical Background
In order to provide effective lubrication and cooling of internal engine components, all internal combustion engines consume a certain amount of
engine oil. Oil consumption varies from engine to engine and may change significantly over the life of the engine. Typically engines with specified
break-in periods consume more oil during the break-in period, and the oil consumption will stabilize after the break-in period. Refer to the Owner's
Manual for specific break-in procedures.
Under normal conditions, the rate of oil consumption depends on the quality and viscosity of the oil, the RPM at which the engine is operated, the
ambient temperature and road conditions. Further factors are the amount of oil dilution from water condensation or fuel residue and the oxidation
level of the oil.
Production Solution
Not applicable.
Service
Before Testing or Attempting Repair
1. Explain the Technical Background to the customer as stated in the Owner's Manual.
2. Obtain detailed information regarding the customer's perceived oil consumption before starting the test. If the oil usage is lower than the Audi oil
consumption standard listed in the vehicle's Owner's Manual, advise the customer the engine oil consumption is within specifications and no further
testing is needed at this time.
3. Ensure a minimum of 3,000 miles (5,000 km) have been put on vehicle. It is normal for the oil consumption of a new engine to reach its lowest
value after a certain mileage has been driven. A vehicle must be driven about 3,000 miles (5,000 km) before oil consumption can be properly
assessed.
4. If the vehicle is within the New Vehicle Limited Warranty, you must obtain authorization from the Audi Technical Assistance Center before
proceeding.
Oil Consumption Test, Part 1
1. Select the test plan in the VAS5051 tester: Function/Component Selection: Powertrain >> Engine >> Engine lubrication >> Partial systems >> Oil
consumption measurements.
Tip:
Technician must select the correct model year and engine code from the GFF selection screen.
2. Follow VAS5051 test protocol exactly. Document all information on oil measurement sheets.
Tip:
Due to the R8's dry-sump lubrication design with multiple drain plugs, the oil draining procedure below must be followed exactly for both parts of
the consumption tests to achieve accurate and consistent measurements.
139
a. Remove both sections of rear dampening pan.
b. Open the oil drain plug labeled 1 in Figure 2 and drain for 10 minutes. Reinstall drain plug with new gasket and torque to specification.
c. Open the oil drain plug labeled 3 in Figure 2 and drain for 5 minutes. Reinstall drain plug with new gasket and torque to specification.
d. Open the oil drain plug labeled 5 in Figure 2 and drain for 5 minutes. Reinstall drain plug with new gasket and torque to specification.
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e. Open the oil drain plug on the oil reservoir (Figure 3, arrow) with a 12 mm multipoint socket comparable to VAS 5301/19. Drain for 5 minutes.
Reinstall drain plug with new gasket and torque to specification.
Tightening Specifications
Oil drain plugs to oil pan: 10 Nm
Oil drain plug to oil reservoir: 22 +/- 2 Nm
3. Archive the VAS5051 diagnostic log and oil measurement test sheets as shown above in the vehicle service file.
4. Advise the customer that if the low oil level warning light comes on before the required 630-mile test is completed, the vehicle must be taken
directly to the dealership for Part 2 of the oil consumption test regardless of the miles accumulated.
Oil Consumption Test, Part 2
1. When the customer returns the vehicle to the dealership, complete Part 2 of the oil consumption test. Ensure the oil is drained in the manner
described above.
2. If the GFF printout from Part 2 of the test indicates an oil consumption rate outside the permissible tolerance and the vehicle is within the New
Vehicle Limited Warranty, authorization from the Audi Technical Assistance Center (TAC) is required to perform any repairs. You must attach the
GFF log to the TAC contact.
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Warranty
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
Digital scale with 15 kilogram capacity and 5 gram accuracy, which can be obtained locally if necessary. Adam Equipment Inc offers a Model CPW
plus 15 and will provide a 20% discount for this item to our dealer network, plus freight. They may be contacted at:
Adam Equipment Inc
26 Commerce Drive
Dandury, CT 06810
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.
