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A/C - Bear R12/R134a Leak Detector Modified

REF.NO.: MBNA 58/60, 83/4

DATE: February 1993

TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS

SUBJECT:
BEAR ELECTRONIC REFRIGERANT LEAK DETECTOR FOR R12 AND R134a

Via the Mercedes-Benz Standard Equipment Program, Bear Automotive has sold an electronic refrigerant leak detector which is applicable for use with both R12 and R134a automotive refrigerant. These units were sold under model number HI-134a, and were sold together with extension probe model HI-135.

Some early-version units (identified by a yellow colored case) of this model may have displayed either a lack of sensitivity or what were interpreted as false signals. These conditions were due to the extreme sensitivity of this unit to proper adjustment by the operator. Consequently, the manufacturer has redesigned the unit to eliminate this over-sensitivity to adjustment, thereby enhancing its effectiveness/accuracy. This redesigned unit can be identified by its black colored case.

Presently, the manufacturer is making a one-time offer to exchange the earlier version units (yellow colored case) for the later version units (black colored case) at no charge to any Mercedes-Benz dealer.

NOTE:
This offer is only valid through April 1, 1993.

The extension probe, model HI-135, should he included with the returned leak detector. It will be tested and returned together with the new version leak detector.

The subject leak detector should be sent prepaid/insured to:

Hitech Instruments
40 McLean Road
Brevard, NC 28712-9989

Attn: Customer Service Department
Mercedes-Benz Desk

Please allow three weeks for delivery.