Pre-Purchase Inspection Guidelines
Test drive
Check engine oil level
Control module interrogation (If applicable)
Run PIWIS Tester & print all fault codes
- Check for any Range #2 or #4-6 over revs.
- Check POSIP for any occurrences-incident history (If no accidents, these should be all 0’s)
- Check production date of POSIP Control Unit (Compare to vehicle production date)
- Check for any valve train inconsistencies (Deviation= Actual vs. nominal)
- Compare VIN, engine & gearbox numbers in PIWIS vehicle data to actual
- Check TPMS wheel electronics battery age-life or battery specification condition
- Check DME Operating hours (take hrs and multiply by 30 MPH AVG)
- Perform secondary air injection test on all 993’s
- Check OBD-II monitors for ready status
Engine oil filter inspection (Remove, cut engine oil filter open and inspect for debris)
Engine oil pan inspection (Remove engine oil pan and inspect for debris on all 9X6’s & 9X7’s)
Accident damage search
a) Check over car complete for any accident damage.
b) Remove tail light and headlight assemblies, remove all front trunk carpeting including spare wheel, remove front cowl area covers and remove all 4 wheelhouse liners if applicable, all in an effort to further inspect for any accident or repaint damage.
c) Use electronic paint thickness gauge and check all paint for any inconsistencies.
d) Have Tony inspect all paint
Mechanical check over
a) Inspect car thoroughly mechanically
b) Inspect for any new suspension bits
c) Inspect car for engine or gearbox replacement
d) Inspect car completely utilizing Callas Rennsport “Check over list” and note all suspect, needed and noticed items. These items will be itemized and given to the customer requesting (paying) for the Pre-Purchase Inspection.
e) Perform Engine leak down and compression tests.
Other
Recalls and campaigns
996-997 Voltage drop issues for battery-charging system cables
Gearbox oil condition
Brake fluid condition
Fuel trim values
OBD II Ready status reached
Option numbers
Fuel quality analysis & CBS Interrogation (BMW)
Final evaluation and consultation
Document all results. Email photos and data to prospective client. Discuss all data with client during a telephone call or in person in an effort to help the client make an educated decision.
Test Drive
hey, thanks for sharing!