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Online Service Repair Manual for your 840Ci (E31)
We are the industry's leading source of online factory Diagnostic and Repair Information used by 200,000+ automotive technicians everyday. We offer both one-year and five-year subscriptions for our 840Ci (E31) manual. Additional vehicle subscriptions are also available at savings of over 30%.
I was having computer/electrical problems with my car that were a complete mystery. I purchased information for my car on ALLDATADIY.com, and now my car is running perfectly. Thank you, ALLDATA, for helping me get back on the road without having to get my car towed to a service station. - Phillip S
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