In the Car Talk Communities, there’s a question this week about a 2005 Mercedes-Benz C-Class that won’t start, despite the battery being “good.” Before you go buying new batteries, alternators or starters, there’s a sequence of diagnosis you should follow to figure out what’s going on. Cause #2: In the case of a customer complaint, before connecting to the BMW Diagnosis System, duplicate the “no-crank” complaint. 1. I have a 2009 bmw 328i. just installed alternator, thought battery was disconnected, it wasn't, grounded out the wires and blew a fuel pump relay. How deep was the car in water . This told me the car wasn’t actually dead. That typically happens when the battery is almost empty: it holds enough charge to power minor users like the lights and radio, but it's no longer capable of supplying enough power to run the starter. Try: Swapping Relays. A BMW may show the key symbol on the instrument cluster, PARK light stays on and the engine won't start if the key is not being recognized. In the last few days, when I try to start it it clicks when I turn the key all the way, but won't start. Very often this could be caused by a low battery or poor connection between the battery and starter. If there is no power at terminal "C" on the starter with the key in the start position, there is either an EWS problem, or a bad ignition switch. Classic "my E30 just cranks, but won't start" thread. Some people replace this to start car.I think we ruined something jumping this as with the car off, and after jumping this part, all the lights and wipers stay on all the time and shifter wont move. I checked the battery, it seems to be okay. I have checked the fuel pump fuse and think I hear it priming when the ignition is turned on. What to expect at the repair shop when your BMW X3 won't start How is a no-start diagnosis fixed? Engine Dies Right After It Starts. I recently purchased a 2009 X5 3.0i around 2 months ago with about 110k on it. Connect the two large wires together with another piece of wire. This does not sound like a totally defective part. The car did have power. All lights and radio came on but it wouldn't start. This is when... - … If your car won’t start but the lights and radio work fine, it could be one of several problems, possibly including a dead battery. I really appreciate everyone who takes the time to put these "how to's" together and share your experiences for others to learn from. Try to start the engine. Motronic works ok in another bike.There is no power coming to the multi plug under the tank that supplies power to the fuel pump. Car Won’t Start Symptom – Engine cranks but won’t fire up. The common issues are a dead battery, discharging, or lose terminals. Voltage and CCAs all check out with the battery. If the fuel does shoot out then you probably have another issue. ... And you will need to check power supply to the fuel pump while cranking the engine. Hello, I'm new to the forum. Very often this could be caused by a low battery or … Cross post from /r/BMW. In the morning the car would not start at all nor would it click. Carry out a short test but do not delete the fault memory. Hint: … The pump(s) won't receive power until the DME receives a signal from the crank sensor (I cars) or flywheel speed sensor (e cars). A few weeks ago, I tried to start it. 2. I tried to start my 2002 with 31k miles yesterday and it won't start. The key may have a slash, line, or exclamation line on top. Two of the four wires attached to the connector will be large gauge wires that supply power to the fuel pump. If the water was deep enough to go into the breather system and get into the engine you could be looking at a hydrolock condition . Car turns over, but it won’t start. New cat/exhaust, new o2 sensor, new alternator. I recently just purchased a 2004 M3 with SMG. My 2002 BMW x5 won't start. A faulty ignition switch can cause either a no crank/no start, or crank/no start condition. it has been very helpful. I grabbed the jumper pack to jump start her battery, and we headed back to her car. Bmw 120i key stuck in ignition no power in dash,car was parked for 10 months put new battery,when i put the key in the dash all lights went on when i tempted to start the car everything went dead a lot of new bmw needs programming when install a new battery. But since you can't talk to the DME that won't work. Check for battery voltage at terminal X6510 on the starter solenoid (just below the B+ terminal) with the ignition in the “start” position. Correcting most no-start problems usually involves replacing the alternator, starter or battery, cleaning connections, ignition system repairs, or fuel system repairs. Intermittent no start, or strange electrical symptoms are also typical signs of a failing ignition switch. Replaced the relay and it started right up. The battery is relatively new and was on a battery tender. Requires fuel ; Requires spark; Top 5 Mercedes-Benz no start problems. I reckon there's a broken wire somewhere. are we talking a foot deep with a big splash or three feet or more . I tried boosting it but the problem is not the battery because it wont start even with a boost but then i come back to turn it on the next day and it turns on normally but shows the DTC and 4x4 lights on the dashboard. With a broad no-start issue, the possible causes are plenty, so it’s important to understand what it takes to make a car start and run. Hey there, thanks for writing in about your 2008 BMW 535xi. I had a problem starting my 98 740i a few times so I decided to charge the battery overnight. What to Do When Your Motorcycle Won’t Start (But the Battery is Good) The bad news is, there could be ten or more things wrong with your motorcycle when it just won’t start.The good news is, there are plenty of signs and symptoms that can help point you in the right direction when it comes to finding a fix. This could be the starter itself or the starting circuit. Check for battery voltage at the B+ terminal (top post) on the starter solenoid; no power, check the battery, cables, terminals, and ground connections. Posted by jps7070 on Nov 16, 2010 Want Answer 0 The reason why the radio, dash lights, headlights, and other electronics draw power while the engine doesn't has to do with the amount of current each device draws and what may be interrupting the path. That’s when I noticed something: When I pulled on the door handle, the window would move a little bit. The BMW uses a standard Bosche style relay. My 2003 bmw wont start..no clicking sound..but the lights and power windows are working. A no crank, no start condition indicates a problem with the starting system. There is a 12v supply there but that's on the fuel gauge circuit. Something else was wrong. With the radio off, turn the key to the “Run” position and listen for a two-second buzzing sound. The car is turning but it just won't start. Bike has only done17000mls. Recently the car has been losing all electrical power which means doors wont unlock dash lights wont come on nothing. In your vehicle, power to the starter is directly controlled by the car access system module. TK. My 2000 BMW 328i wont start, Battery, starter, alternator all good. It could save you hundreds of dollars: This diagram […] Replace your power supply if it fails your testing or you experience the symptoms I … Thanks I do enjoy my M5 quite a bit. An ozone smell or very high pitched noise, combined with no power at all in the computer, is an almost certain indication that the power supply is bad. I have an automatic 1985 528e with over 160k miles on it. Hello, I have a 2009 BMW 328i that is having a sudden no-crank, no-start issue with all lights coming off as normal and no dimming of lights when attempting to start and no signs of a faulty, low battery. The 2006 BMW 750Li car makes a clicking noise but won’t start: If you turn the key to the “Start” position, but the engine won’t crank; all you hear is a single click or repeated clicking coming from the engine compartment. If you have 12V, go to step 2. e46 wont start. Replaced the ignition switch, tumbler, and code reader ( that black plastic ring on the tumbler assembly) and still no luck. Cranks, but won't start! This problem is because BMW is not recognizing the key which could … Nothing electrical works in the entire car. For comfort access-equipped vehicles, rule out specific comfort access-related issues by inserting the remote key in the key holder. We tried to jump start the car, but still had no power. Took it to a shop, they found it had spark, but no fuel. There is no spark and no injector signal. I rode the bike last Saturday and it was running great. Won't start no clicking after charged battery 2 Answers. Battery Problems: Most of the generator won’t start due to simple battery problems. was it deep enough to get water into the interior. The engine cranks over, but doesn't actually start up. It has some type of power because the spar plugs sparked . Verified power going to the DME and input voltage coming in on the signal wire. Hi guys, my 1986 bmw 325es won't start. It turns over fine but won't even hint at starting. Discussion in 'E46 (1999-2006)' started by scurtin3, Jan 2, 2016. It requires electrical power to crank the engine. First off, thank you for actually looking at the post. Member scurtin3. All lights and everytything works when the key is on but no juice to the starter. Unplug your computer immediately and skip the testing. The remaining two are smaller gauge and are the control circuit that turns on the relay. The car has failed to start only 2 times out of the last 1000 times, a few weeks ago at a relative's house and today. Engine Click, No Start. Here are a few tricks to try if the engine cranks but the car won’t start: Family Handyman. Here is the black BMW 2008 328i relay we jumped with small jumper wire, … Replaced the fuel pump, new alternator, battery is a year old and is on a battery charger every few days. That’s the … I don't have a battery reader & tried looking for the battery only the positive connection is on top – … Car clicks but won't start when I turn the key, battery's new 5 Answers. if anyone has any idea whats wrong with it please help me out. 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