Range Rover P38
BMW DIESEL
3
FAULT DIAGNOSIS
2. TURBO INTERCOOLING SYSTEM
Symptom - Loss of Performance
POSSIBLE CAUSE
REMEDY
1. Cooling air flow through
intercooler matrix restricted or
blocked.
1. Apply air pressure to engine side of radiator to clear obstruction. If
mud or dirt is evident, carefully use a hose.
2. Charge-air flow through
intercooler matrix restricted.
2. Check for blocked air cleaner element and renew, if necessary.
See SECTION 10, Maintenance.
3. Blocked air cleaner.
3. Renew air cleaner element.
See SECTION 10, Maintenance.
4. Pipe/hose leaks in intercooler
system.
4. Tighten all joint connections or renew components as necessary.
5. Turbocharger not operating
correctly or inoperative.
5. Substitute parts and recheck.
See FUEL SYSTEM, Repair.
6. Customer fitted grille blind
restricting cooling air flow.
6. Remove blind or advise accordingly.
3. ENGINE OIL COOLING SYSTEM
Symptom - Engine Oil Overheating
POSSIBLE CAUSE
REMEDY
1. Air flow through oil cooler
matrix restricted or blocked.
1. Apply air pressure to engine side of radiator to clear obstruction. If
mud or dirt is evident carefully use a hose.
2. Blocked or damaged oil cooler
or pipe/hoses, restricting
engine oil flow.
2. Check for visual damage and renew components where necessary.
3. Oil cooler relief valve seized in
closed position.
3. Remove and check relief valve. Renew if necessary.