UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C.  20549
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FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
/ / Check box if no longer subject of Section 16.  Form 4 or Form 5 obligations
may continue. See instruction 1(b).

Filed pursuant to Section 16(a) of the Securities Act of 1934, Section 17(a) of
the Public Utility Holding Company Act of 1935 or Section 30(f) of the
Investment Company Act of 1940

1.   Name and Address of Reporting Person
     PHYLLIS O. BONANNO
     200 S. Michigan Ave.
     Chicago, IL 60604
2.   Issuer Name and Ticker or Trading Symbol
     BorgWarner Inc. (BWA)
3.   IRS Identification Number of Reporting Person, if an Entity (Voluntary)
     -
4.   Statement For Month/Year
     February 5, 2003
5.   If Amendment, Date of Original (Month/Year)

6.   Relationship of Reporting Person to Issuer (Check all applicable)
     (X) Director ( ) Officer (give title below) ( ) 10% Owner ( ) Other

7.   Individual or Joint/Group Filing (Check applicable line)
     /x/ Form Filed by One Reporting Person
     --- Form Filed by More Than One Reporting Person


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Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
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1.Title of Security|2.Transaction Date  |3. Transac-   |4.Securities Acquired
                   | (Month/Day/Year)   |    tion Code | (A) or Disposed of(D)
                   |                    | Code  | V    | Amount |(A)or(D)|Price
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                |                 |    |   |     |   | 
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5. Amount of Securities |6. Ownership Form | 7.Nature of Indirect
   Beneficially Owned at|   Direct (D) or  |   Beneficial Ownership
   End of Month         |   Indirect (I)   |
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                     |               |      
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g. Puts, Calls, Warrants, Options, Convertible Securities)
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1.Title of Deriv-|2.Conversion |3.Transaction |4.Trans- |5.Number of
  ative Security |  or Exercise|  Date(month  |  action |  Derivative
                 |  Price of   |  \day\year)  |  Code   |  Securities Ac-
                 |  Derivative |              |         |  quired(A)or
                 |  Security   |              |         |  Disposed of(D)
                 |             |              |Code| V  |   (A) |   (D)
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              |          |           | | |    |   
Phantom Stock    |             |              |    |    |       |
Units (1)        | (1-for-1)   |   2/05/03    | A  |    | 412.53|
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6.Date Exercisable    |7.Title and   |8.Price of  |9.Number of   |10.Ownership
 and Expiration       |  Amount of   |  Derivative|  Derivative  |Form of Deriv-
 Date(month/day/year) |  Underlying  |  Security  |  Securities  |ative Security
 Date Exer-|Expiration|  Securities  |            |  Beneficially|Direct (D) or
 cisable   | Date     |  Title|Amt.or|            |  Owned At End|Indirect (I)
           |          |     |#of shrs|            |  Of Month    |
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        |       |        |   |     |           |     
 (1)       |   (1)    |           |      |$50.42  |    814.92    |   D
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(1)The phantom stock units were accrued under the Borg-Warner Automotive, Inc.
Board of Directors Deferred Compensation Plan and are to be settled 100% in
cash according to the terms of the plan.
11. Nature of
    Indirect
    Beneficial
    Ownership
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Signature of Reporting Person

     /s/ Laurene H. Horiszny
     Laurene H. Horiszny
     as attorney-in-fact for PHYLLIS O. BONANNO
     Date: February 5, 2003