Consumer Complaint Detail

BMW / 740I / 1994

Recalls
0 Injured
Investigations
0 Death
Complaints
No Fire
Components - Details
NHTSA Complaint Number: 901091585 Incident Date: Dec, 31 1900
Consumer's City: ANTELOPE Consumer's State: CA
Vehicle Transmission Type: AUTO Manufacturers Name: BMW of North America, LLC
Model Name: 740I Model Year: 1994
Vehicle Involved in a Crash: No Component's Description: Engine and engine cooling:engine
Vehicle Involved in a Fire: No Persons Injured: 0
Vehicle's VIN#: WBAGD4322RD Date added to File: May, 23 2021
Date Complaint Received: Jan, 09 2007 Complaint Type: LETR
Incident Reported To Police: No Purchase Date: -
Was Original Owner: No Anti-lock Brakes: No
Number of Cylinders: 8 Date of Manufacturer: -
Was Vehicle Towed: - Description of the Complaints: 1994 740i bmw leak down problem that destroyed the engine**cc the leak down flaw caused the engine to develop worn linings and exhibit a rough idle. the consumer stated the manufacturer used nikasil, an aluminum, nickel and silicon alloy to line the cylinders of the m60 engine. the cross hatched nikasil linings reacted with high sulfur content found in lower-quality gasoline. the reaction caused damage to the very top of the cylinder bore, where there is most contact of the burning mixture and the cylinder lining. the damage prevented a good seal from forming between the piston and the cylinder wall, which caused a loss of compression in the combustion chamber. the consumer stated the only permanent fix for the problem is to replace the short block with the equivalent block using alusil linings, which do not exhibit the corrosion problem. *jb