Hi I have a BMW 320 d. I have a battery drain issue, have had a refurb alternator fitted and have had a brand new battery and was still getting a battery drain of 1.7amps, have just had it diagnosed and they have said it is the, multi function module in the drivers footwell.Could you tell me roughly how much it would cost to get replaced, also would this unit have anything to do with reverse Answer. In the BMW 320d Touring, as in many other models of the German house, the battery is placed on the right side of the trunk. To reach it, therefore, it is first necessary to open the rear compartment and extract the support surface. To have complete access, you must therefore unscrew the side cover fixed with two plastic screws.
First attach a lead to where the B wire attaches to the starter. While the key is turned to start, touch the meter's other lead to the battery's positive post (not the clamp). Observe the voltage -- it should be minimal, like less than a volt. If it's higher, there's a problem in that circuit.
F1 – F2 – F3 – F4 – F5 (5A) Horn relay. F6 (5A) Vanity mirror lamps, convertible top control module. F7 (5A) Convertible top actuation switch, navigation system control module, audio unit output amp lifier, digital multifunction display, telephone audio unit
My 330d is at the BMW shop as we speak exactly for a battery change. Dealer price for a battery would be around 350€, even at non-BMW repair shops. Shopped around online and purchased a Varta 95Ah 850A AGM battery for 180€ shipped including the 7,50€ return deposit. Went to BMW dealer to get it installed, they didn't blink an eye.
BMW drivers apparently top the league of horn abusers. This surprised me as, after only 4 years one of mine stopped working, which didn't cause it to fail t Important! Some BMW 3 Series (E92, E93, E90, E91) vehicles might be equipped with an IBS (Intelligent Battery Sensor) system. That means, newly replaced battery must be registered by your Service center. Avoiding battery registration might cause power management system failure, as well as incorrect readings on the display of the on-board computer. Beginning with the easy (and cheap) things first, look at your clutch switch. It should be at the top of your clutch pedal (assuming the UK 320d is so equipped). Crawl under your dash and look while you move your clutch pedal. The switch should be attached to a wiring harness. The wiring may be detached. http://www.euroautotraining.comThe Car Commando gives tips and tricks for BMW Battery Safety Terminal (BST) diagnosis and repair. Find more On Demand Technic
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