Good video well explained, I only use continuity as a first line check, but backfeeds through another circuit can cause your meter to beep, sending you on a wild goose chase. Resistance is good for tracing wires that might have been accidentally be crossed. I find an ethernet cable tester with croc clip adaptors both ends very useful during comissioning multi wire installations. But, I use a low value resistor as a load to stress a wire, H4's break to easily in my tool bag! Happy fault finding everyone

Ha where get m3 t shirt??

Absolutely brilliant how to, they always teach voltage drop at the BMW academy to the apprentices but it always fries your head over continuity testing. Volt drop is definitely the way to be checking.

Voltage drop for the win 👍

Good tip. Everyday’s a school day.

Nice one! Thanks for sharing Ben. 😊

Why does my N63 have too much suction when I take off oil fill cap when car is running I replaced all vacuume components

I'm having the same problem just when the mechanism lock opens and stops moving the soft top. Can you advise me?

What are you talking about?

Hello, I believe we have identified the issue with your EME and have a solution. If possible, we hope to get in touch with you. You can check out the video I just posted, where you can see our ongoing training session. In the video, we are working on the EME for models such as the X5 F15, G38, and F18.

Not sure if you will reply in time, as im going back to bmw tomorrow. 2 months ago, i noticed car was lowered. I turned engine on and it rasied itself back to normal. This then continued, could lower after an hour or sometimes days and then every time i start engine it would go back to normal. So i bit the bullet, took to bmw and then diagnosed as it needing a new air compressor which i paid around £1.3.k to have sorted. Got car back and week later, it lowered. Gutted i am, because i go back tomorrow for them to take car back and look again and tell me know what they think is wrong. Ive suggested they got it wrong and they relaced a part which dodnt need replacing. They are digging heels in and saying a new fault has happened which is causing it to lower again. Have you got any ideas on how i can approach this. Thanks

What compelled you to need to change them?

I would unplug the fuel line and hook my flowmeter that i made myself to the pump outlet while the pump is in the tank. Then on my flowmeter i would set the regulator to 5.5 bar while the pump is working and pumping the fuel into a 5 liter bottle. If the pump is PWM i would command highest speed with the scanner. For 3.0l NA motor the pump needs to produce 1.15liter per minute at 5 bar. Then i just start the stopwatch and check the flow for 1 minute i have on my 5 liter graduated bottle.

Good advice 👍

49 years in the motor trade and I’ve never come across a V10 🤷‍♂️😂

Hi mate, I’ll be honest I’m stressing, I’ve had a EMS light pop up, scanned it and resulted in 3 fault codes: Camshaft Exhaust Sensor Signal Implausible, 130304: VANOS, exhaust camshaft, control jammed, camshaft jammed and a P13C9 code. I’ve change the sensor drove it for a little and the EMS light has not come back. Car starts fine, can’t notice anything with the driving, cleared the fault once came back after 5 days. Can you please tell me if I will need to change these bolts. Thank you.

😎

Another great post pal 👍

As nice as that BM V10 sounds, you can’t really say it’s the best due to all its issues. However, I’d vote the Lexus LFA as the best V10.

Good job pal. I think i will struggle a lot more without some of the specialist tools you have. I know you didn't show it in the vid but was the hub nut hard to remove mine is well corroded, even if i manage to remove it getting the shaft out of the hub will be my next struggle, any tips on that? Cheers

Never heard anyone speak well of RRG, then again I think all the big groups in the trade were much of a muchness...I used to work for Hartwell (Warrington) and they were bloody awful.

Thanks

That’s some forest mate those trees are so tall think I read somewhere Finland is 70% forest. Place I work can’t get mechanics or should I say good ones I’ve been there 4 years and 4 of em have been and gone shite they were 😩6 months and I’m done 66 retirement age was thinking about carrying on but my hands shoulders and back are starting to ache time to give up I think.

Great video Ben KZbin must be hard work but it will pay off .have you ever thought of doing BMW training for the aftermarket?

You are a top notch mechanic/diagnostisian. I think you have to have a long breath to get where you want to be on the "you tubes". i follow a number of diag people. PHAD, SMA, ... The content is great, also your presentation skills...(i will try to share this channel on dutch forums)

You’re right that it’s impossible to 100% diagnose faults every time. Not in the real world. I can’t understand why your channel isn’t bigger. I always enjoy your videos and often learn something 👍

Onwards and upwards. Keep going.

Thanks

Great video Ben. Just make the videos when you can as it's really informative. Shame it's not getting the traction you deserve. I've shared many of your videos with those friends still in the trade. All the best 👍

Another great informative video , i appreciate what you do , time is money ,but your giving your time and knowledge to the world , which is priceless, pat yourself on your back mate , cheers

Haven’t seen a pump issue like that before mate. My money is on someone having been in the tank previously. The joys of intermittent faults! Just this week had a Ram module causing RF interference on the remote receiver, rdci wouldn’t calibrate…took me a while to find that one haha. All the best

Enjoyed watching this

Did you ever work out what caused it?

Beautiful garage 👍

Wahey first in 🤣

Hello buddy. We’ve just bought an e90 n43 320i, on 96k. Full history. Very clean and looked after vehicle with every receipt from new. Owner had it serviced prior to handover. Not sure if he used cheap oil and filter. Need to look at receipt. Anyhow, we have a very intermittent oil pressure warning. Once turned off it resets itself. I’m gunna try this fix hope it works. Excellent video. Seems the penetrating fluid worked a treat with a careful patient use of correct tool. I’m quite mechanically minded being a panel/paint man and having been around cars my whole life. I need videos like this as a bit of confidence and guidance. Thanks brother. Would you advise us to use an OE part or a regular eBay job. Old saying, buy cheap buy twice. Edit, receipt for timing chain too 8000 miles ago.

great video 👍🏻 just came across this at work , one question , the sprocket itself , where should i position it on the cam as i’ve only just found out ur supposed to mark it before removal ,

New sub here, really like your calm collected style to what is quite an annoying situation 😂. I've got a 2008 automatic 320i petrol with only 59k on the clock. You say its worth removing as part of routine but is it if there's no issue? I'm tempted but worry it would snap. Cheers

Hi! Good explanation. The reason they are using the ground to control the various devices is due to ability to check the system. As you well stated, when the ground is not applied, you will have a 12v return from the motor (in this case). The control module can check for the "feedback" voltage and determine if there is a problem with the circuit or the motor. In this case it measured the voltage return from the motor and determined there's a problem so it triggered the fault - bad motor. Of course you could have a bad wire/bad connection/bad motor, the module doesn't know that, but at least you have a starting point. If it was 12v+ controlled the module couldn't recieve a feedback, because you can't check for ground return. I mean you can, but would always trigger a fault. The fact that you saw a pwm of low voltage on the ground side could mean a bias voltage sent by the module to pinpoint the problem (motor or connection). If there is no low pwm signal returning it means short circuit. It there is low pwm signal returning it means open circuit and the module can trigger the fault code accordingly. I'm used to this systems from industrial machinery. Of course the price of that systems is 10 times more expensive. It's amazing where the car diagnostic systems have arrived....and people are saying..."too much electronics...it was better before..." yeah right...try diagnosing a car with this much accessories without feedback systems on the modules! Keep them coming! Cheers

Oh, the blower fan on the E90's will cost you more in chiropractor's visits. A massive PITA to replace with a lot of swearing involved, if you have a wife that does Yoga get her to replace it!

An excellent instructional video 👍

Where is your shop? Can I bring my car to you please 😬😬 Came across loads of channel in youtube and yours looks the best.

Low side drivers are easier to make, insulate and more importantly control, you may only need 3.3V signal to turn a low side 12v driver on and off for instance! If you go looking for them you'll find way more low side (0V ground switching) than high side (supply switching). As for PWM duty cycles, as a kid you may have tried to turn your bedroom lights into a disc by turning them on and off quickly (not recommended) well if you turn them on for half a second and off for half a second (50% duty cycle) your bedroom would theoretically be at half brightness, or a motor would run at half speed. The main reason for not using dropper resistors other than the heat dissipation is the motor looses torque at lower speeds due to the lower voltage across its terminals. Switching a maximum voltage on and off quickly while the average measured voltage looks lower the torque is maintained, within limits. Good video, I think the first garage just didn't know what they were doing or didn't want the work. Make it sound expensive and you can either fleece someone or make tham go away! 🤙

Great job and a much easier fix than on the E53 X5. I had to do mine earlier this year and as you're no doubt aware, its a dashboard out job. Still it was the original from 2005 on a car with 250k miles👍

N20 problem ❓

When is my B48 engine block rebuild ready on the 2016 4-series :)

outstanding mechanic

You are a genius mate. I wish I had even 1% of your knowledge!! Keep up the great work!!!

I have the N20 in the wife’s F31 and the N43 in my E90. Am I a glutton for punishment?

Excellent !