1997 BMW 328is AutomaticFACTORY OEM SERVICE PROCEDURE

Battery Specifications

BATTERY SPECIFICATIONS

Application Amp Hr. Rating
M3, 323i, 323is, 328i & 328is (1) 75
Z3 110
318i & 318is 65
318ti 50
528i 70
540i 90
740i, 740iL & 750iL 110
840Ci & 850Ci (2) 65
(1) Convertible amp hour rating is 70.
(2) Vehicle utilizes 2 trunk-mounted batteries.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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