Thunderbolt Posted June 23, 2020 Report Share Posted June 23, 2020 So one of my Mrs staff has a BMW F800R. He is not mechanically minded. Just before lockdown he borrowed a battery charger and my jump start pack as his battery had given up the ghost. FFWD to a week or so ago and it doesn’t start, showing EWS error. He has had it recovered to a BMW specialist, who had offed him £3.5k for the bike, but now say £1k BMW main dealer ECU change. I am thinking ring antenna and a good battery. Possibly alarm battery too. What say you? Quote Link to comment Share on other sites More sharing options...
noely02 Posted June 23, 2020 Report Share Posted June 23, 2020 https://motorcycleinfo.co.uk/bmw-ews-electronic-immobilizer-on-can-bus-bmw-motorcycles-index0d47/ Any use of you haven't already read it? Quote Link to comment Share on other sites More sharing options...
Thunderbolt Posted June 23, 2020 Author Report Share Posted June 23, 2020 Just now, noely02 said: https://motorcycleinfo.co.uk/bmw-ews-electronic-immobilizer-on-can-bus-bmw-motorcycles-index0d47/ Any use of you haven't already read it? I haven’t but what does it say apart from replace the ring antenna? Quote Link to comment Share on other sites More sharing options...
noely02 Posted June 23, 2020 Report Share Posted June 23, 2020 If I read it right, new ring antenna but you need to tape the original spare key somewhere on the bike. Also What to check before replacing the Ring antenna? Cycle the ignition again, and if the problem persists, then Check the wiring and wiring connector to the Ring antenna for: Any damage (possibly caused by chaffing etc. or rodent damage) Over tightened cable ties that might have cut into the wiring or are preventing good contact at the connector (due to lack of slack in the wiring) Poor connection at the connector to the ring antenna Read the fault codes with GS-911. The ring antenna might not be the problem that is preventing your motor from starting Might be worth taking it to a genuine bmw dealer for their opinion and ignore the salty prices on their repair quote. Quote Link to comment Share on other sites More sharing options...
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