bmw mechanic blog - More B48 problems and a look at our new Thinktool on... a Toyota 🤷‍♂️

Please watch: "how to test a mosfet with digital multimeter on a bmw dme with msd80 ecu. "
• how to test a mosfet w... -~-
bmw blog mechanic takes a look at Wife Johnsons Toyota with our new Thinktool which was interesting to say the least. If you are thinking of buying a Thinktool I would highly recommend that you do.
I also take a look at an X1 with a B48 thats using a litre of oil every 700km.
Finally 😀 I show you around a B48 on the engine stand ready to be shipped back for a rebuild.
Apologies to Kevin Palmer who had made a wonderful comment on the original video 😌 I had to perform a series of edits and accidentally deleted the original video.
‎Music:Hands High‎
‎Musician:LiQWYD‎
‎URL: / liqwyd‎
#mechanic #carmechanic #bmw #blog #vlog #faultfinding #faulty #carservice #car #i3

[@GerardBurkeBurkesGarage]

Nice video mate, great info and knowledge sharing 👌👍👍 I love my thinktool as well, I initialized the drivers window on an F10 the other day. packed with goodies 🎉 😊

[@allmech_BMW_fault_finding]

Thanks Gerard 🙂 The jobs are coming thick and fast. Next update will be from the POV glasses. Should be interesting

[@justindaniel5959]

Any B48 from 2018 is good. 👍 recall on the turbo oil return oil line and coolant pipe to the engine block

[@marcelforrel]

Recently got the mentioned coolant issue. Mine is a 2018 too.

[@allmech_BMW_fault_finding]

@marcelforrel Hope you get it sorted buddy 🙂

[@justindaniel5959]

@@marcelforrelit is part of factory recall, you should not be charged money !

[@marcelforrel]

@@allmech_BMW_fault_finding started off with replacing the oil filter housing/oil cooler, all free of charge. Noticed I was losing like 750ml of coolant overnight. (Only big expansion tank loss) Now, several days later, the intercooler expansion tank is dropping like 100ml’s a day & the big expansion tank seems to remain at appropriate level but is for sure contaminated. Oil particles inside. Pretty odd. + when I stop the engine after being on a drive I hear lots of gurgling and fluids circulating & also sounds that are similar to how a goose would sound on helium. Literally. So like, a squeaky goose. Any thoughts based on that info?

[@marcelforrel]

@@justindaniel5959 yeah I heard, also covered under ext warranty it seems apart from the mentioned recall. Cheers brother.

[@Hongkongphoey]

Hi ben, thank you for sharing youre expertise! I have a bmw 128ti and was wondering if there was a way to prime the oil system after a filter change? I know some manufacturers have a flood clear procedure but not sure about BMW? Regards paul.

[@allmech_BMW_fault_finding]

Hello Paul. No we never need to do such procedures on Bmw since the oil pressure is so fast in building up pressure we never see any problems 🙂

[@Hongkongphoey]

Morning Ben, thank you for replying so quick! I've only just come across you're channel and I'm looking forward to watching you're content. I was a technician/master tech in the truck dealers for many years here in West yorkshire but work for the local bus company now. The 128ti is my first bmw but being a tech as you know we always want to know more in depth about our cars and what things to look out for and keep on top of lol. Unfortunately I have no contacts at bmw as i do at toyota and ford so you can never get passed the service receptionists 😢 Cheers, Paul.

[@allmech_BMW_fault_finding]

@paulcoultous5098 Hi Paul, my mum is living over that way. Beautiful county 🙂 Anytime you need anything just drop me a line. I have a group over on LinkedIn too where you can join - just click the link in my channel description 🙂

[@Hongkongphoey]

Cheers Ben, much appreciated 👍😊 One question I'd like to ask is why does my B48 have to rev up so aggressively on cold starts? I know you mentioned oil pressure builds quick but it always makes me cringe especially if it's been stood a week 😩

[@allmech_BMW_fault_finding]

@paulcoultous5098 I noticed that too. I think its to warm up the cats as fast as possible in my opinion and get the car into closed loop quicker. Plus on earlier N20 engines with lower cold start idle they were lumpy until the piezo injectors had got into their stride.

[@mikimiki195]

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

[@allmech_BMW_fault_finding]

Because the breather diaphragms are split

[@mikimiki195]

@@allmech_BMW_fault_finding they’re brand new

[@allmech_BMW_fault_finding]

We fit a Vaico one to an N63 last month and it filled the manifold full of oil lol. No idea bud why your engine is doing that. You would need to do cylinder leakage test maybe in case rings are stuck in

[@mikimiki195]

@@allmech_BMW_fault_finding thank you

[@DexterDexter-oz9gk]

I have a b48 330i f30 2017 December, when I rev it to 900 rpm approximately on cold, it fluctuates quite a lot. Sometimes on idle the car shivers. Anyone knows something about this? No mechanic could diagnose it so far… I don’t know what to do

[@camaroblackmatte]

check ignition, air leaks, old petrol filter, ista diagnostic could tell you something.....my E83 got a tremour in traffic, near idle rpm on turns, changed myseld glow plugs and control module, cleaned intercooler/lines/intake, plus today the sensor set turbo/exhaust pressure .. now it just purrs :) hope you fix it fast !

[@camaroblackmatte]

in winter let it stabilise, glow plugs and module+ alternator conexion are very important for heating the block, if those are fine ...maf sensor could act up, a cleaning won't hurt

[@DexterDexter-oz9gk]

@@camaroblackmatte thank you very much for your reply, I will comeback tomorrow with a list of everything I have done to it.

[@rishabnadkarni]

Hey, would you, in this day and age, buy a 2017 b48 330i with about 18k miles on it with full regular service history done at the dealership? Afraid of bad surprises in the future. Thanks for the content

[@allmech_BMW_fault_finding]

Me? No because I am way too old and prefer fat comfy stuff like 7 series but for anyone else why not? Avoiding the shitty 330e is a wise move mate. Lets face it - the main faults are already well known and they aint so common. Love the b48

[@rishabnadkarni]

@@allmech_BMW_fault_finding hey thanks so much for responding! So I turn 30 this year and it’s gonna be my first German + my daily driver. So worth a pick up? Just worried bout running it outside warranty

[@allmech_BMW_fault_finding]

@rishabnadkarni You can always get one from Bmw with extra or extended warranty mate

[@rishabnadkarni]

@@allmech_BMW_fault_finding I doubt they do the extended warranty in my country (India), but I’ll check again. Appreciate the tips! Subscribed! 👍

[@allmech_BMW_fault_finding]

@rishabnadkarni Thanks so much. Please watch the videos too 🙂

[@RM_BURNER]

Hi thanks for this video. I'm considering buying either a pre-facelift G20 320i or a pre-facelift G30 520i, both of which of course come equipped with the B48 engine. In your professional opinion, what are the common problems with this engine? Is there any work/repair in particular that I should ensure has been done before buying one? Would appreciate any advice. Many thanks.

[@allmech_BMW_fault_finding]

I just made a short a few days ago go check it out as it shows how you can check the breather you know in case you go test driving. Please subscribe and press notify as I will be doing a cam cover change on that very car next week which should improve the sucking issue. Other faults:- Injectors leaking into cylinders Early engines 2015/16/17 avoid as some had piston slap, again I can probably make a short about that too. Luckily you are not buying a hybrid 😅 Most engine problems seem to occur with the 530e as opposed to 520 or 320. Would I have one? Hell yeah. B48 is a brilliant engine. Just make sure to take time to find a mint one and with full history pref with oil changes every 15-20k. Change oil regularly too Just check exhaust tip has no black oily deposits, that you start car from STONE COLD to check if exhaust has fuel smell. Make sure no little end light knock from cold etc. Best of luck buddy

[@RM_BURNER]

Cheers for this pal. Have noted this down and subscribed. I've read also that some owners have experienced coolant related issues, specifically cracked oil filter housing and cracked coolant line. Have you seen any of this in the workshop?@@allmech_BMW_fault_finding

[@allmech_BMW_fault_finding]

@DoubleRM Oh aye I forgot that as well I have one in next week. Depending on work load I may be able to do a video. Lets see. P.s. Oil filter plastic housing are common on N47 diesels too mate. Nothing to worry about if you can do the job yourself. Once done it will prob not fail again. Coolant loss not as common. Stick with the AllMech community mate and we can help out in the future if need be. Thank you for subscribing very much appreciated. I hope you enjoy my content.

[@DexterDexter-oz9gk]

@@allmech_BMW_fault_finding Hello Sir! I would like to purchase a 2017 330i with 40.000km. Should I worrry about piston slap? What month should be the production in order to avoid the piston slap? Also, what preventive maintenance I can do? I just subscribed, thank you for your content

[@allmech_BMW_fault_finding]

Hi there and thanks for subscribing it really helps me. Tbh 2016 seemed THE year for piston slap. The best year is 2018 just to be sure and higher mileage cars with no oil consumption issues are better as you know the engine is good. In hybrid use petrol engine from cold until warmed up then electric and change oil every 9000 miles with good filter and premium oil. Adding RVS is great but it cost 400 euros for a small bottle though it does help with engine longevity.

[@mottipaa]

onko se makneetto mirello vai mikä perkeles se o

[@allmech_BMW_fault_finding]

On se. Lohkon valmistaja on Magnetti Marelli 😀

[@barriesmith6028]

Ahhh tools the simple things in life 😂 love em

[@allmech_BMW_fault_finding]

Its a good tool as well. Managed to program a used unit with it - this would not be possible with Bmw ISTA 😅

[@barriesmith6028]

Can I pick your brain agin I have lost the clutch on my 2008 e90 n43 the clutch peddle is fine and the clutch is not slipping could it be a slave cylinder?

[@allmech_BMW_fault_finding]

@@barriesmith6028 Hi pal. You need to see underneath if the slave cylinder moves or not. If you have a good pedal one would assume that the hydraulics are okay and the clutch disc is faulty. You need to confirm if the slave cylinder is pushing the clutch fork forwards or not. Clutch forks breaking are common on those.

[@barriesmith6028]

@@allmech_BMW_fault_finding ok I’ll check that this car is driving me bonkers I’m ready to give up no wonder I was gifted it done 111,000 just the right time for everything to start going 🙄 not sure it’s worth it …shame it a beautiful car in great nick body wise and inside .thank you for your advice it’s most appreciated 🙏.keep the very informative videos going you will smash 💥 it .

[@CarOwner-uv6gy]

Cut costing😂

[@seriously_america]

question about the b48 vanos system. Where is the vanos central valve located for the exhaust camshaft? i have code 130714. i replaced the exhaust actuator hoping that would take care of it but im st ill getting error code. ISTA says next step if replacing actuator didnt fix the problem is to replace the vanos central valve. But i cant find much info about where these valves are located. the N20 is easy to find being on the front. but the b48 are somewhere in the back but idk where. Thanks for the tour of the b48 that was some good quick info.

[@allmech_BMW_fault_finding]

You need to remove the engine. The bolt that holds the vanos sprocket is also the hydraulic valve (central valve)

[@aircates]

Good stuff, Ben. Watching the scan tool on the Toyota it appears to be in closed loop in the first data set shot. I too was surprised with the short term trim values at first but when I saw the long term trim it made sense. Factoring them both puts your total trim less than 5%, no worries on that. Toyota will usually go into closed loop pretty quickly due to the O2 sensor heaters. It surprises me that it uses O2 as an upstream, by that year model here in the states, we used A/F sensors on the upstream on everything pretty much. I’m sure curious if thinktool makes a scanner for here in the states. Keep up the great work!

[@allmech_BMW_fault_finding]

Yes Mike. Good cars these Toyotas. Imagine this car is from 2008 and everything works as it did when new 😅

[@Harry92evers]

I dont know if you're able to help but my x1 b48 is showing an engine light. I'm not that familiar with bmws at all, more of a vw man. When scanned its showing an intermittent 130f11 fault, exhaust camshaft sensor, signal not plausible. The car starts fine and appears to run smooth but it will go into limp mode. I cleared the fault and swapped the camshaft sensors around hoping id then get an intake cam fault but the exhaust one came up again, so I'd image both sensors are good. Last week the wife brought it to the mechanic to be serviced, id usually do it myself only I was in hospital. The lads I use are vw specialists and the admitted to not being familiar with these engines but they rang a guy in bmw and told them its probably the timing chain or cam wheel. Anyway, Im not convinced it needs a chain, the engine only has 115k kms on it and does not make any typical chain rattles. Would you have any suggestions? Thanks

[@allmech_BMW_fault_finding]

I can imagine its this:- B48 B38 VANOS FAILURE! CHANGE YOURS IMMEDIATELY IF YOU HAVE THESE FAULT CODES. kzbin.info/www/bejne/g2GndWSdlr-kbM0 Let me know how you get on. Injectors are not easy. You need alot of special tools to get em out and back together. These are to be removed to get off the cam cover 🤦 Bad design.

[@Harry92evers]

@@allmech_BMW_fault_finding Thanks very much, do you mind telling me what a ball park repair cost would be for this? Also would I be getting more than one fault if it was as broken as your video?

[@allmech_BMW_fault_finding]

@@Harry92evers Usually the fault code is for Vanos jammed or the code you mentioned. Unfortunately without opening it up and stripping you wont know. Usually if chain is stretched the crankshaft camshaft correlation code comes up.

[@Harry92evers]

@allmech_BMW_fault_finding no problem thanks for that. Is it safe to drive with a fault like this? Its parked upbat the min but the closest bmw specialist is 30 miles away

[@allmech_BMW_fault_finding]

Your choice mate. If in doubt get a low loader and have it recovered in. Better be safe than sorry.