BMW 318, 325, M3: Heater core

Date

Feb. 1, 1993

Filed by

Bayerische Motoren Werke

Vehicles

BMW 318 (1984, 1985, 1991, 1992); BMW 325 (1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993); BMW M3 (1988, 1989, 1990, 1991)

Manufacturer of the vehicles

BMW of North America, LLC

Component

Visibility › Defroster/Defogger/Hvac System › Heater Core

Description of the defect

The malfunction or failure of a coolant System Component results in significantly increased coolant temperature And a resulting increase in System Pressure.

Potentially affected

375000

What can happen

Vehicles operated under this increased cooling systempressure condition Can suffer damage or failure of Parts of The cooling systemsuch as (1) leakage from a coolant Hose, (2) leakage of The Radiator orexpansion Tank, (3) disconnection of a Hose from a pipe or a fitting, And (4)CRACKS in The Heater core end piece resulting in coolant leakage. In some cases,boiling coolant Can contact The lower Right leg of The driver resulting inburns. Also, escaping coolant in The passenger compartment Can cause vaporfogging of The interior surface of The Windows, reducing driver visibility.

Remedy

Dealers will install a thermostatic Bypass Valve in The Engine compartment to Control coolant temperature in The Heater core. Also, a New Design Radiator cap will be installed, to Control Pressure And provide greater coolant overflow in The event of overheating.

Recall notes

System: coolant System.Vehicle description: passenger cars.

Owner notification date

June 4, 1993

Recall type

V (vehicle)

Influenced by

ODI

Recall number

93V015000

What should I do? Car recall: how to check your car and get it fixed

Source: NHTSA · Vehicle record. View the agency notice. The agency notice governs; check it and the company before acting.