Starter and starting problems check list. grade 6 electricity project ideas

############

5.) Check and replace the starter motor. Several have been replaced both here in the US and with the Club in the EU, however this starter has been used for a number of years on many other BMW’s with no indication of a problem. The starter motor is common to both the Z8 the Alpina. (Bosch PMGR 1.7kW/12 Volt, CW, 9-Tooth Pinion). The solenoid does seem to be part of the problem, but it is an integral part of the starter, and can only be replaced with electricity 101 presentation it.

– the key does not require an internal battery to start the car. There is a transponder chip inside the key that is powered by magnetic field coupling from the ring coil in the ignition key slot. While not explicitly mentioned, this is obviously separate from the wireless remote functions in the key as those obviously need a battery to function.

Ok, so let?s look at how the car starts. First you insert your key. The key communicates with la gasolina cancion the EWS3.3 control unit. When it satisfies the EWS by sending data for identification and start enable, the EWS releases (enables) the starter relay located in the control unit and also sends a coded enable via datalink to the DME. This enable has to be communicated successfully for the car to start as the DME is responsible to enable the fuel supply and ignition functions. After the engine starts, sends a code change into the key and a new code is also stored in the DME.

Both the EWS and the DME electricity cost calculator maintain identical tables of codes. These codes are changed every time you try to start your car. Engine start is allowed only if the code sent by the EWS agrees with the code in the DME. Since the codes of the DME and EWS are matched in production of the car, you can?t do swapping of one or the other of these units for test purposes. If faults cause the codes to not match anymore, it is possible for BMW service to rematch the codes.

EWS3 is used on various BMWs and I note that automatic transmissions also have an enable switch if the selector is in P or N which must be satisfied for static electricity zap the car to start. This may apply to Alpinas. Interestingly the EWS gets this signal along two paths, one via K Bus and the other via data link. If one or the other is not received, noticeable gas lighting urban dictionary start delays ranging up to 2 seconds might occur, but then again, this only applies to automatics.

Below is a diagram showing the electrical connections enabling the starter. With this kind of information, and the help of a BMW tech to find the various points, it is possible to put a multichannel recording device to show which nodes receive voltage and which do not upon a failed start sequence (the infamous click but no start). That seems like the most effective way to find where this problem is occurring. But it implies that the logging device is attached and left on a car for a long period in hopes that the fault will occur. I wonder if this capability is actually built in to the car already.

edit: the fact that we hear a click indicates that an electromechanical relay or solenoid is being powered on the press of the button. There are only two electricity trading jobs that I can see for sure, one is the start relay and the other is the relay in the starter 9gag memes motor assembly. It isn’t clear if there is one on the EWS also, but yes I think there might be. The start relay is a small white relay located at the right rear of the engine compartment under a cover located beside the DME box, which is high up just under the hood and ahead of the firewall.

The attachment is a simplified diagram showing how power gets to the starter motor. I admit to being a bit puzzled about the configuration of the two solenoids in the starter. I copied this directly from the symbol used in the BMW document. Of the two solenoids, the one on the left of the diagram clearly operates the relay contacts, but the one on the right is a bit unusual.

I’ve had repeated problems with starting since I bought my Alpine nearly 4 years ago. So far, I’ve been through 2 batteries (now using a glass mat battery), a new starter gas constant for air motor and have had a switch on the gearbox changed. Each time, the z8 would come back from the workshop starting like a dream. The trouble was this also happened even when it went in to try and find out what was causing the endless starting problems – with no solution found. Which began gas house edwards to make me suspicious: how come the car was always fine after time in the workshop, but not at home on a trickle charger? Finally, a bit of light dawned: just maybe it was because the key was being left in the ignition for lengthy periods of time and given time to re-charge. So, despite the advice from local BMW mechanics that it would make no difference, I simply left the key in the ignition overnight and put the battery on trickle charge. That was a month ago, and the car hasn’t missed a beat since: starts first gas vs electric stove top press every time. It may not be the answer to everyone’s problems with the dreaded ‘click’ but having had to press the starter up to 30 times before getting any response in the past, it certainly seems to have worked for my Alpina!

I have had this problem as well. My car is being serviced and the mechanic (who is very familiar with the Z8 engine but less familiar with the Z8) has suggested that this problem can also be related to the vanos system. He says that gas efficient cars under 5000 when the starter is depressed the cam variators are rotated left then right. This is a valve timing check. If this checks ok, the motor starts if not the system waits for another start try. The need for good electrical power to perform the rotation may explain why a poor battery (poor charge) results in this problem. My Z8 is a garage queen (2000+ miles) and he has suggested that this might have something to do with the problem – something about the engine oil.

This is very interesting Phil. I can’t see anything in this suggestion that conflicts with any of the symptoms we have been seeing, so it fits so far. There is a clear link between the car sitting idle for long periods and the dreaded click, but the link is not so obvious to simple battery condition tropico 5 electricity, key charge condition and so on. Please keep us informed.

Do we know if the non-start events increase with increasing mileage? When I got my Z8 in 2010 it only had about 2300 miles on it and I had a significant number of non-start events. My Z8 still has less than 3000 miles on it and just the other day when starting cold (with 13.32 Volts on the battery) I had 5 or 6 clicks in a row before it started.

Can anyone confirm the vanos sequencing that I described in my July 2, 2015 post above (information provided by Dan MacKay at Bradan)? If the variators are sequenced as Dan described this would account for different current requirements for a cold engine a hot engine and an engine that had sat for a while as the amount of oil electricity clipart and oil viscosity in the vicinity of the variators would differ under various conditions. My worst clicking experience this spring occurred at my first start attempt since putting the car up last year (even with the brand new battery).

I would also note that the particular battery charger will yeild different final battery charge voltages. For example, I have 4 identical CTEC battery chargers on four separate Interstate batteries and the full charge voltages were 13.32, 13.5. 13.53 and 13.6 volts. These are all a far cry from the 14.23 Volts that the electricity in the body causes Z8 itself, when running, puts on the battery.