EXTREMELY LOUD KNOCKING NOISE INSIDE THE ENGINE. *TR
2003 Land Rover Discovery
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Discovery years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
39 reports with mileage · 9 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
8 reportsOIL PUMP FAILURE. LAND ROVER ISSUED A TECHNICAL ADVISORY TO ALL OF THEIR DEALERS IN MARCH 2003 WARNING THAT DUE TO A MANUFACTURERS DEFECT IN THE ENGINE BLOCK DOWELS BEING MISDRILLED WHERE OIL PUMP HOUSING IS MOUNTED, THAT THE MISALIGNMENT CAUSES THE OIL PUMP HOUSING TO BE STRESSED EVENTUALLY CAUSING THE OIL PUMP TO FAIL. THE ONL…
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OIL PUMP FAILURE. LAND ROVER ISSUED A TECHNICAL ADVISORY TO ALL OF THEIR DEALERS IN MARCH 2003 WARNING THAT DUE TO A MANUFACTURERS DEFECT IN THE ENGINE BLOCK DOWELS BEING MISDRILLED WHERE OIL PUMP HOUSING IS MOUNTED, THAT THE MISALIGNMENT CAUSES THE OIL PUMP HOUSING TO BE STRESSED EVENTUALLY CAUSING THE OIL PUMP TO FAIL. THE ONLY EFFECTIVE REPAIR IS TO REPLACE THE ENGINE. I PURCHASED THIS VEHICLE IN 2006 WHICH HAD COME OFF LEASE. I HAD IT SERVICED AT LAND ROVER DEALER IN SOUTHAMPTON NY AND THEY NEVER ADVISED ME THAT THIS WAS A MANUFACTURERS DEFECT AND THAT MY VEHICLE FELL WITHIN THE VIN RANGE REFERRED TO IN THE TECHNICAL ADVISORY. OTHER CONSUMERS HAVE THE SAME PROBLEM AND THERE ARE OVER 30,000 VEHICLES CURRENTLY ON THE ROAD WITH THIS SAME PROBLEM. WHY IS THERE NOT A RECALL AND WHY DOES LR NOT REPLACE THE DEFECTIVE ENGINES? *TR
CONDUCTED AN OIL CHANGE NOV 2010 ENGINE FAILED NOV 2010 ENGINE STILL HAS FULL OIL 2003 LAND ROVER DISCOVERY ENGINE FAILURE. DUE TO OIL PUMP FAILURE. THIS A KNOWN MANUFACTURE DEFECT THAT LAND ROVER WILL NOT REPAIR. *TR
I HAVE 2003 LAND ROVER, DISCOVERY CAR THAT REQUIRES CONSTANT REPLACEMENT OF THE NAVIGATION SYSTEM AND ITS RADIO/CD PLAYER. THIS IS MY FIFTH REPLACEMENT SINCE THE PURCHASE OF THE CAR. IN ADDITION TO THIS, THE ENGINE OIL CONSTANTLY LEAKS...TOOK IT IN FOR REPAIR NUMEROUS TIMES BUT THE PROBLEM CONTINUES. THE ENGINE LIGHT IS ALWAY…
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I HAVE 2003 LAND ROVER, DISCOVERY CAR THAT REQUIRES CONSTANT REPLACEMENT OF THE NAVIGATION SYSTEM AND ITS RADIO/CD PLAYER. THIS IS MY FIFTH REPLACEMENT SINCE THE PURCHASE OF THE CAR. IN ADDITION TO THIS, THE ENGINE OIL CONSTANTLY LEAKS...TOOK IT IN FOR REPAIR NUMEROUS TIMES BUT THE PROBLEM CONTINUES. THE ENGINE LIGHT IS ALWAYS ON....TOOK IT IN A FEW TIMES AND THE DEALERSHIP REPAIR CENTER SAID IT WAS AN ELECTRICAL SENSOR PROBLEM. THE BRAKE AND ABS LIGHTS WOULD COME ON AND GO AWAY ON ITS OWN. SINCE MARCH 2010, THE BRAKE AND ABS LIGHTS DECIDED TO STAY LIT. WILL TAKE IT IN FOR VEHICLE INSPECTION AT THE DEALERSHIP. JUST YESTERDAY, ALL MY PASSENGER WINDOWS CAN NOT BE MOVED UP OR DOWN WITH THE WINDOW CONTROLLER. A SIMILAR PROBLEM WAS REPORTED TO THE MANUFACTURE NUMEROUS TIMES ON BOTH THE DRIVER AND THE PASSENGER WINDOWS. THEY WERE REPLACED EACH TIME IT WAS TAKEN IN. THIS IS A LEMON CAR AND I SHOULD HAVE HAD IT REPORTED BACK IN 2003 WHEN I FIRST PURCHASED THE VEHICLE. *TR
2003 DISCOVERY W/ 36K MILES. I WAS DRIVING OFF THE HIGHWAY AND HEARD A NOISE FROM THE ENGINE AND THAN OIL LIGHT CAME ON. PUT IN NEUTRAL AND PULLED OVER. HAD IT TOWED TO NEAREST GARAGE. OIL PUMP HAD "EXPLODED" AND RIPPED A WHOLE IN ENGINE "COVER." I SAW THE OIL PUMP GEAR IN PIECES. THERE IS A KNOWN TECHNICAL SERVICE BULLETI…
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2003 DISCOVERY W/ 36K MILES. I WAS DRIVING OFF THE HIGHWAY AND HEARD A NOISE FROM THE ENGINE AND THAN OIL LIGHT CAME ON. PUT IN NEUTRAL AND PULLED OVER. HAD IT TOWED TO NEAREST GARAGE. OIL PUMP HAD "EXPLODED" AND RIPPED A WHOLE IN ENGINE "COVER." I SAW THE OIL PUMP GEAR IN PIECES. THERE IS A KNOWN TECHNICAL SERVICE BULLETIN FOR DISCO 2003 OIL PUMP FAILURE RESULTING IN NEW ENGINE REPLACEMENT AS ONLY PERMANENT FIX. CURRENTLY MY CAR IS AT LAND ROVER HINSDALE ILLINOIS. WILL NOT COVER B/C WARRANTY IS UP 10MOS AGO. HAVE CONTACTED CUSTOMER CARE AND THEY ARE IN THE PROCESS OF DECIDING TO EITHER GIVE ME NOTHING OR A "GOOD WILL GESTURE" W/ UNLEAR MONETARY HELP. HUGE STRESS ON A CAR THAT HAS FEW MILES AND A KNOWN PROBLEM THAT COULD HAVE BEEN FIXED FOR 500 DOLLARS OR SO AND NOW COULD BE UP TO 10,000. SOMETHING NEEDS TO BE DONE. THANKS JK *TR
TL*THE CONTACT OWNS A 2003 LAND ROVER DISCOVERY. THE CONTACT STATED THAT THE OIL WARNING INDICATOR LIGHT ILLUMINATED AND THERE WAS A CLUNKING NOISE COMING FROM THE ENGINE COMPARTMENT. THE MECHANIC STATED THAT THE OIL PUMP NEEDED TO BE REPLACED. THE VIN AND ENGINE SIZE WERE UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 55,000…
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TL*THE CONTACT OWNS A 2003 LAND ROVER DISCOVERY. THE CONTACT STATED THAT THE OIL WARNING INDICATOR LIGHT ILLUMINATED AND THERE WAS A CLUNKING NOISE COMING FROM THE ENGINE COMPARTMENT. THE MECHANIC STATED THAT THE OIL PUMP NEEDED TO BE REPLACED. THE VIN AND ENGINE SIZE WERE UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 55,000. UPDATED 01/28/08. *LJ UPDATED 02-25-08 *BF THE CONSUMER STATED AFTER RESEARCHING ONLINE, SHE DISCOVERED OIL PUMP FAILURE SEEMED TO BE A COMMON PROBLEM WITH THIS VEHICLE. UPDATED *JB
TL*THE CONTACT OWNS A 2003 LAND ROVER DISCOVERY. THE CONTACT DETECTED A FAINT BURNING SMELL WHILE DRIVING 70 MPH. THE VEHICLE WAS PULLED OVER AND OIL SUDDENLY BEGAN ERUPTING FROM THE REAR OF THE VEHICLE ONTO THE REAR WINDOW. THE DEALER DIAGNOSED THE FAILURE AS THE OIL PUMP. WHILE REPLACING THE OIL PUMP THE DEALER DISCOVERED …
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TL*THE CONTACT OWNS A 2003 LAND ROVER DISCOVERY. THE CONTACT DETECTED A FAINT BURNING SMELL WHILE DRIVING 70 MPH. THE VEHICLE WAS PULLED OVER AND OIL SUDDENLY BEGAN ERUPTING FROM THE REAR OF THE VEHICLE ONTO THE REAR WINDOW. THE DEALER DIAGNOSED THE FAILURE AS THE OIL PUMP. WHILE REPLACING THE OIL PUMP THE DEALER DISCOVERED THAT THE BEARING AND CRANK SHAFT WERE RUINED, AND THE ENGINE WAS DESTROYED. THE VEHICLE HAS NOT BEEN REPAIRED. THE CURRENT AND FAILURE MILEAGE WERE 50,300.*AK
DT*: THE CONTACT STATED THE STEERING WHEEL WAS MISALIGNED WHILE MAKING TURNS. THE VEHICLE WAS TAKEN TO THE DEALER WHO ADJUSTED THE STEERING WHEEL, BUT THIS DID NOT REMEDY THE PROBLEM. THE VEHICLE WAS RETURNED TO THE DEALER AGAIN AND THE DRAG LINK WAS REPLACED, BUT THIS DID NOT REMEDY THE PROBLEM. DURING ANOTHER VISIT, THE DE…
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DT*: THE CONTACT STATED THE STEERING WHEEL WAS MISALIGNED WHILE MAKING TURNS. THE VEHICLE WAS TAKEN TO THE DEALER WHO ADJUSTED THE STEERING WHEEL, BUT THIS DID NOT REMEDY THE PROBLEM. THE VEHICLE WAS RETURNED TO THE DEALER AGAIN AND THE DRAG LINK WAS REPLACED, BUT THIS DID NOT REMEDY THE PROBLEM. DURING ANOTHER VISIT, THE DEALER NOTICED THE BRACKET ON THE FRAME WHERE THE FRONT TRACK BAR BOLTS WAS FRACTURED. ADDITIONALLY, THE DEALER DETERMINED THE FRACTURE WAS CAUSED BY A COLD WELD OR WAS NOT WELDED PROPERLY WHEN MANUFACTURED, HOWEVER THE VEHICLE WAS NOT REPAIRED BY THE SERVICE DEALER. THE VEHICLE WAS EVENTUALLY TAKEN TO AN INDEPENDENT FRAME SHOP FOR REPAIR. THE VEHICLE WAS PLACED ON A FRAME ALIGNMENT MACHINE; THE BRACKET WAS BENT BACK INTO PLACE AND WELDED. THE CONTACT IS CONCERNED BECAUSE THE VEHICLE WAS POSSIBLY MANUFACTURED WITH THIS DEFECTIVE FRAME WELD AND IT APPEARS TO HAVE BEEN WELDED MECHANICALLY. THE EXHAUST SYSTEM WAS MISALIGNED WHICH CAUSED THE TAIL PIPE TO RATTLE. THE WAS A FLUID LEAK COMING FROM THE TRANSFER BOX DUE TO A FAILED INPUT SHAFT SEAL. UPDATED 04/06/06. *JB
Official recalls
103V133000 · Vehicle Speed Control:cables
Apr 14, 2003
ON CERTAIN SPORT UTILITY VEHICLES, THE THROTTLE CAN STICK INTERMITTENTLY DURING ITS OPERATION. THE EXACT POINT OF STICKING IS NOT PREDICTABLE AND CAN RESULT IN A HIGHER ENGINE SPEED THAN EXPECTED.
Consequence & remedy
Consequence: IN THE CASE WHERE A THROTTLE FAILS TO RETURN TO IDLE, PARTICULARLY AFTER A HIGH DEGREE OF ENGINE THROTTLE APPLICATION, THE DRIVER WILL EXPERIENCE DIFFICULTY IN BRINGING THE VEHICLE TO REST, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE THROTTLE BODY. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT LAND ROVER AT 1-201-818-8500.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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