Skip the auto shop - Our mechanics make house calls

Q: Won't start, turn over. 1996 BMW 328is

asked by on

I have a new starter in my car and my ignition and switch are new. My battery is full and the accessory light is on. But I can't start my car. When I turn the key it won't turn over. Do I need to replace the starter relay?

A: The electronic immobilizer module completes...

The electronic immobilizer module completes the circuit to the starter once it has determined all of the parameters are correct. There is no stand alone relay, as it is built into the immobilizer module. If you are not getting power to the starter and have already replaced the ignition switch, my guess is that the problem is in the anti-theft system.

It could be the immobilizer itself or one of the inputs. You may also want to check the #31 and #28 fuse just to be safe. German electronics can be quite complex, so I suggest you have a professional diagnose and repair the starting issue for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My instrument panel goes blank intermittently.

It seems your vehicle is experiencing an electrical open from bad wiring or a loose connection. The instrument cluster itself may have an internal fault and require replacement. A vehicle of your age may have wiring with deteriorating insulation or...

Q: My key wont turn to the full off position. It starts but only goes down to ACC not off.

Hello. Thank you for writing in. Over time and after continuous use, the ignition cylinder can become out of place. The cylinder itself ends up breaking and turning in place. Often the switch will then become confused and not know...

Q: Clutch not fully engaging.

When it is hard to shift, the clutch may be damaged. When the clutch pedal goes to the floor, either the slave cylinder return spring comes off, the slave cylinder breaks open a leak, or the clutch release bearing collapse...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...