Hello bmwtechnician, since there is no page regarding an oil cap I thought I would ask it here. Is this normal? I wish there is some way I can show you the picture. Like Like. This is a i N51 by the way. Good thing oil and coolant look like their normal colors.

BMW Reading Fault Codes

If it is normal then I am happy and relieved right now. Thank you for replying. Also my oil temp gauge reads that the oil temperature is almost degrees the entire time. This seems really hot, is this normal temp? What is the hottest it should get on the oil temperature gauge?

Am I missing something or does the i coupe only have an oil temp gauge but not a coolant temp gauge? Hello bmwtechnician, I was driving normally today and taking it easy on the car.

City driving with no traffic. However when I looked at the oil temp it was above This freaked me out. I instantly took a picture. The temp actually went up a little higher than the picture.

I just changed the oil with 5w full synthetic. What should the normal temp be? Check for fault codes, nothing engine related so far…. Someone put green coolant in the car instead of BMW blue coolant. Would this cause the car to run hot? Also would 0w cool the engine better? Thanks for your feedback. Hello BMWtechnician. So today I went out for a drive to get my oil temps up to operating temperature again since it was hitting the last time I drove it.

I decide to put it in sport mode and keep the revvs up a little bit. Surprisingly, the oil temp never went past and the car seems to idle a tiny bit higher and smoother than ever, Any idea why this would fix itself all of a sudden after going for a hard drive? No real reason,maybe that was a one time freak thing that happened,,I would just keep an eye on the oil temp and see what happens. Hello BMW technician. I have a i with a N51 motor. Recently I got the computer updated at my dealer to correct an idle problem.

Every since the update when I start the car when cold, the idle would bounce up and down at rpms for a second in park.

This only happens for a little bit when it is warming up in park.

BMW VANOS Solenoid Replacement

Sometimes my car would long crank too.Remember Me? Second Lieutenant. Heys guys, I been searching threads all day yesterday but still cannot seem to find the exact problem similar to mine. Read the codes with JB4 and came up with these: "2A7C" - No description found " - Low boost mode engaged - CEL trigerred" Pulled over to restart the car hoping that will fix the issue but no luck.

Eventually it went away after about 3 restars and I drove home without going WOT and being easy on the gas pedal and half engine light has not come back on the way home. I read about the vanos possibility but it's a slightly different code 2A Not much info on the 2A7C code at all. Anyone had same issue at all? Appreciate the input guys!

Appreciate 0. Major General. Just search that code here I had this same issue last week After searching the forums for a while I found someone else with a similar issue and there culprit was the oil. Either dirty oil or the wrong weight oil was used. I'm not sure if this could be your issue but I changed my oil and I haven't gotten any codes. I am due for an oil change as well.

I'll start with that. Thanks for your input Jettin, I don't want to start replacing vanos if they are working fine. Anyone else got these codes lately that can chime in? Enlisted Member. I have a very similar situation to yours, and I was wondering what ever happened long-term?

I got that dreaded 'half power' error a few days ago shortly after starting the car. After that 1 incident that has started and run perfectly normal every since. I pulled my error codes this morning, and sure enough the two most recent are 2A7C and This information applies to 3, 5, and 7 series BMW models. What does this mean? It caused the motor to go into limp mode.

Un hooked battery for a few minutes then hooked back up car runs perfect for about 2 miles then same thing. Hello Can u explain this PD code? To BMW d xdrive Is it something with driving system? Two or three days later it does it again. What might be causing this. Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content. Other codes may also be stored, but they can only be retrieved using an appropriate Scan Tool. Wait 3 seconds for the code s to flash. The check engine light will flash the first code, pause for 3 seconds, then flash the next code. For example, if codes 2 and 4 are stored, the check engine light will flash twice, pause for three seconds, then flash four times. When all codes have been displayed, the check engine light will remain ON.

Leave a Reply Cancel reply Your email address will not be published. X5 ERemember Me? BMW Models. Yellow half engine light 2A7C. Results 1 to 9 of 9. Thread: Yellow half engine light 2A7C. Thread Tools Show Printable Version. Yellow half engine light 2A7C Hey everyone, I have a i with 56k miles.

Over the last three weeks my car has gone into limp mode 4 times. The first three times it was when during normal city driving no wot with the car fully warmed up. The last time was during a somewhat cold start.

BMW Complete Diagnostic Fault Code List [E36, E46, E90 and more]

Each time the limp mode and light went away when engine was shut off and turned back on. The car feels completely fine. I had the codes pulled and it's throwing the 2A7C code: 2A7C: vanos inlet; cold start. My Indy says I need to either clean or completely replace the solenoids. He recommended getting them cleaned at the same time as my previously scheduled walnut blast to see if that will resolve the issue. What are your guy's thoughts?

Is he just trying to make a quick buck off me or will cleaning the solenoids maybe fix my issues?

Clearing Vanos Code Check Engine Light BMW E90

Should would dirty solenoids cause intermittent limp modes? Do a search on cleaning the solenoids. It's very easy, and worth a try before replacement. You just clean them, and then swap their positions.Remember Me? General BMW Discussion. Results 1 to 15 of Thread Tools Show Printable Version. I've checked voltage to solenoids and relearned actuator limit stops. On cold starts the RPMs rev up to for a second and back down then there's a rough idle until the car warms up.

Drives fine and idles fine after the car is warm. Going to need some help for you on this one: Year Model Engine We don't like to assume it is the car in your "My cars" Also what type of diagnostic tool are you using, and can it read live data?

Wagon My new Winter car. OP, please stop throwing parts at the problem. It's a xi E90 with N52 engine. Originally Posted by dworthy. That is a good diagnostic equipment for a DIYer, so you can watch the live data. What you need to look for is the cam angles, and what the actual is verse what the DME is requesting.

I forgot to ask about mileage too, as rough idle can point to maintenance issues as well. Eccentric shaft specified 32deg and actual 28deg. Not sure if these are the right values for cam angle. There's about km on the car. The check engine light cleared itself yesterday and hasn't come back yet today. Extended oil services can cause them to get gummed up. Eccentric shaft refers to Valvetronic. Somewhere in there you'll find specified and actual camshaft angles. Chris Powell Racer and Instructor since, well.

Ive cleaned the vanos filters and replaced the solenoids and cam position sensors. Cam sensors were dirty when I replaced them. Today the check engine light is back on 2A7C. Vanos position inlet deg. Vanos position exhaust deg. Vanos adaptation inlet Okay, what brand of sensors did you purchase? Cheap Chinese stuff and be rather unreliable, so there is only 3 brands I trust: Bosch, Hella, Siemens. Problem solved.If you are reading codes from specific BMW modules, you may find you get a code.

The code reader or diagnostic tool will ask the module for any stored codes, and it will receive a number in hex format. All codes before that here are decimal. The Motronic 1.

The M1. The M3. The Bosch DME 7. DDE 2. This is an Updated version of the previous DDE 2. DDE5 is another update to the M57 and M67 diesel engine control range.

The wheel speed info could be passed via data lines to traction control systems, which could.

bmw dtc code 2a7c

Improvements include a 4 channel. With individual braking, not only could a. Decreases in the rolling circumference of the tyre from tyre deflation could be monitored. Air Pump Valve Aux.

Air Pump Aux. Air Pump -Plausibility Aux. Hey how are u?

bmw dtc code 2a7c

I have 03 BMW X5 with faults code 39 brake lights switch off because I created electrical sparks when I take out brake lights assembly; I have not power to brake lamps. I check all fuses and brake switch Ok. I have a i bmw i change the right side camshaft position sensor and it still has a bad skip. Took it to oreilly and the codes p and p is coming up,it also says misfire cylinder 2 with fuel cut-off,may question is do i need to change my spark plugs know. Fantastic beat!

I wish to apprentice whilst you amend your website, how could i subscribe for a weblog web site? The account helped me a appropriate deal. I were a little bit familiar of this your broadcast provided bright transparent concept. I have a bmw d e46 and it seems to have not enough power at low rpm and it is a little smoky when on idle. My BMW displays a partially shaded engine and the error codes indicated are 2A6B and 2A61, but there seems to be no effect on the engine performance.

Could you pleaseadvice. My BMW displays a partially shaded engine and the error codes given are 2A61 and 2A6B, however this seems to have no effect on the engine performance. Could you please advice.

Really useful information. Thanks for the info, you made it easy to understand. Very easy to navigate and use.

That i assume persons are serious about exercise contains a formidable is going to of men and women, despite the best way tricky everyday living, regardless how tricky so that you can move the street with everyday living, regardless of the matter strike. Outside work out center, most people comfortably positive, for the reason that we certainly have awesome muscle mass, we certainly have an attractive everyday living approach!The impetus to control motor vehicle emissions, driven by the air quality needs of major metropolitan areas, has lead to 5 decades of engineering innovation in the design of vehicle propulsion technologies.

Because California cities particularly Los Angeles were hardest hit by the proliferation of vehicles and their emissions, starting in the California Air Resources Board CARB has been at the forefront of setting engineering standards for vehicles sold in California, then in the United States and now for the world automotive industry.

Modern vehicle engine operations and emissions including evaporative losses from the fuel tank are extensively controlled via a digital microprocessor, the computer known as the engine control module or ECM. Of the many sensors on the engine and the vehicle, the primary ones are oxygen sensor s which monitor the combustion efficiency of the engine, and knock sensor s which "listen" for engine knock or pinging.

The input signals from these sensors are used by the ECM to adjust fuel mixture and adjust spark timing. Computer control of the engine operations allow two benefits in addition to a precise air fuel mixture and, therefore, lower emissions.

The computers can be programmed to detect faults diagnostic trouble codes or DTCs in their own operations, and the ECM can store this information and illuminate a malfunction indicator light MILoften called the Check Engine light or malfunction Indicator lamp, on the instrument cluster.

The stored faults can be viewed later for diagnosis and repair. By law, it is always located within reach of the driver. Once the diagnostic scan tool is connected to the DLC, follow instructions on the scan tool screen. These usually include:. Select diagnosis program. Select correct vehicle scan tool should find this automatically.

bmw dtc code 2a7c

In many cases, it is best to clear DTCs, then drive the vehicle and retest. Follow diagnostic and repair instructions on scan tool screen. They are also referred to as P-codes. During testing, the scan tool displays each P-code and a brief description of the fault. There are different kinds of fault indicated by DTCs:. If a sensor's output value is outside the expected range, the signal from the sensor is considered not plausible and a fault is set. Power, ground, continuity.

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