1998 BMW 540I Complaints

While stopped (engine still running) at a gas station, the driver side airbag and driver side side curtain airbag both went off. The battery disconnect feature was also triggered. Very lucky I wasn't driving when this occurred.

WHITE STEAM WAS COMING FROM UNDER THE HOOD ONTO THE FRONT WINDSHIELD. THE STEAM WAS FOGGING THE WINDSHIELD, AND CAUSING POOR VISIBILITY WHILE DRIVING 50-55 MPH. CONSUMER WAS ABLE TO GET THE VEHICLE TO A REPAIR SHOP. DEALER INFORMED THE CONSUMER THAT THE UPPER NECK CONNECTOR OF THE RADIATOR HOSE BROKE.*AK

2ND CATASTROPHIC RADIATOR FAILURE. NOT A LEAK, THE NECK BREAKS OFF CAUSING IMMEDIATE LOSS OF COOLING. 1ST RADIATOR AT 45K, 2ND AT 92K. BASED ON OTHER'S EXPERIENCES, THIS IS VERY COMMON FOR THIS MODEL (AND EVEN LONGER LIFE THAN MANY). CAUSES LOSS OF VISION DUE TO AMOUNT OF STEAM RELEASED. LESS EXPERIENCED DRIVER MAY HAVE DIFFICULTY CONTROLLING VEHICLE TO GET TO SIDE OF ROAD QUICKLY TO SHUT DOWN. NO WAY TO PREDICT THE FAILURE. SAME ISSUE WITH EXPANSION TANK. BOTH FAILURES ARE ON PLASTIC PARTS.*AK

THE INSIDE DOOR HANDLES OF MY CAR (1998 BMW MODEL 540IA) ARE CONSTRUCTED OF LOW GRADE / FRAGILE PLASTIC MATERIAL WHICH BREAKS DURING NORMAL USAGE. WITHOUT A HANDLE IT IS VERY DIFFICULT TO EXIT THE VEHICLE. AN EXTREMELY HAZARDOUS SITUATION RESULTS WHEN THIS HANDLE HAS BROKEN BECAUSE IN CASE OF AN ACCIDENT, A DRIVER, OR PASSENGER, WILL BE TRAPPED IN THE VEHICLE. TO ESCAPE, THAT PERSON WOULD HAVE TO CRAWL TO THE OTHER SIDE OF THE CAR OR TO THE FRONT/REAR SEAT TO OPEN A DOOR. IN CASE OF AN INJURY FROM THE ACCIDENT THIS MIGHT NOT BE POSSIBLE. THIS HAZARDOUS SITUATION IS A RESULT OF THE MANUFACTURERS USE OF LOW QUALITY MATERIALS IN SUCH AN IMPORTANT COMPONENT AS THE DOOR HANDLES USED FOR EMERGENCY EXIT. A STRONGER MATERIAL WHICH IS NOT SO EASILY BROKEN SHOULD BE USED FOR THESE PARTS - SUCH AS STEEL.*AK

VARIOUS PROBLEMS INVOLVING 1998 BMW 540IA WHICH WAS BROUGHT USED. *MR BMW HAD BEEN IMPORTING VEHICLES FOR SALE, FITTED WITH A RADIATOR THAT HAD PLASTIC ENDS AS WELL AS SUPPLY AND RETURN UNDER APPROXIMATELY 21 P.S.I. THESE RADIATORS SUDDENLY RUPTURED UNDER LOAD WHILE DRIVING, CAUSING THE DRIVERS TO SWERVE ON IMPULSE AT IMPACT OF THE RUPTURE. THE RADIATOR WAS LIKELY TO RUPTURE AT ABOUT 80K MILES. *SC *JB

I WAS DRIVING DOWN A BUSY STREET ONE EVENING AND AS I CAME TO A LIGHT, SMOKE STARTED COMING OUT OF MY HOOD. FORTUNATELY IT WAS IN THE EVENING AND TRAFFIC WAS LIGHTER THAN USUAL. I PULLED INTO A PARKING LOT OFF THE SIDE OF THE ROAD. HAVING KNOWN OTHERS THAT THIS HAS HAPPENED TO, I FIRST CHECKED THE RADIATOR AND SURE ENOUGH, THERE WAS A LARGE CRACK DOWN THE SIDE OF THE HOUSING. I HAD THE CAR TOWED HOME AND PURCHASED A NEW RADIATOR FROM BMW OF SEATTLE THE FOLLOWING MORNING. THE NEW RADIATOR WAS ABOUT $200, A FEW HOURS OF MY OWN LABOR AND A FEW MORE HOURS DETAILING THE ENGINE PAY AND HEADLIGHTS WHICH HAD RADIATOR FLUID ALL OVER THEM. ALSO FROM THE EXPERIENCE OF OTHERS WHO OWN E39 BMW 540S, I FULLY EXPECT THIS TO HAPPEN AGAIN IN THE NEXT 50K MILES. I ALSO EXPECT THE EXPANSION TANK TO GO WITHIN THE NEXT FEW MONTHS. *AK

PLASTIC NECK OF RADIATOR ON MY '98 BMW 540IA BROKE COMPLETELY AND SUDDENLY ON HIGHWAY. WHITE SMOKE CAME OUT UNDER THE HOOD. SAW TEMP GAUGE CLIMB UP RAPIDLY. PULLED OVER IMMEDIATELY. TOWED TO DEALERSHIP FOR REPAIR. NO ONE WAS HURT LUCKILY. *NM

MULTIPLE COOLANT DEFECTS ON THE 1998 540. THE CAR HAS NOW HAD 3 RADIATORS, 3 THERMASTATS, WATER TUBE SEALS REPLACED TWICE, AND A WATER PUMP. THE COSTS HAVE BEEN OVER $3,500. THESE LEAKS ARE NOT JUST EXPENSIVE, THEY POSE A REAL DANGER TO CAUSING PERSONAL INJURY AND DAMAGE. THE FAILURE RATE IS KNOWN TO BE VERY HIGH. HTTP://WWW.VOTATIONS.COM/ASP/SURVEYRESULTS.ASP?POLLID=66461 .*AK

DRIVER-SIDE FRONT WHEEL BEARING MAKES NOISE WHEN WHEEL SPINS FREELY. THIS WAS REPORTED SEVERAL TIMES TO DEALER IN PAST. DEALER REPLACED PASSENGER-SIDE FRONT BEARING ! DRIVER-SIDE BERAING STILL NOISY. WAITING FOR COMPLETE FAILURE TO PROVE DEALER WRONG. FRONT WHEEL BEARINGS ARE MARGINALLY DESIGNED FOR BMW 540I, THIS IS WELL DOCUMENTED ON VARIOUS WEB SITES OF BMW OWNERS. BEARINGS LAST 75,000 MILES!

ENGINE COOLING RADIATOR HOSE FITTING BROKE OFF. LOST ALL COOLANT ON HIGHWAY. DEALER REPLACED RADIATOR UNDER WARRANTY AND STATED IT IS COMMON FAILURE ON 540I BMW DUE TO PLASTIC PARTS NOT STONG ENOUGH TO RESIST TEMPERATURE. WELL DOCUMENTED ON PRIVATE WEB SITES.