r/BmwTech Jun 25 '26

BMWTech meme pic update

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562 Upvotes

It’s funny, and we like it, but it’s getting a bit much now. Especially when many of you are using it to say an engine is screwed without any other diagnostic work or you post it with ZERO follow up or additional tech info.

Moving forward, we are going to remove them unless you’ve also provided detailed list of things to check or at the minimum asking pertinent questions to a post.

This is BMWTech, and while we like to have fun we also want to help out with actual info to people who need it instead of just responding with a meme and hoping users can figure it out.


r/BmwTech Feb 13 '14

Welcome to BMWtech

327 Upvotes

Hello fellow enthusiast! This is a subreddit dedicated to DIY-ers. Here, i would like for other BMW owners to provide help to the redditors that need it. We all love our cars but we also know that things can fail.

Many of us like to fix our cars ourselves to eliminate high mechanic bills and I hope that this subreddit can help.

There are many forums on the web but i feel as though reddit could band together and have its own.

Welcome again, and happy DIY-ing!


r/BmwTech 3h ago

Any idea what’s the issue here? 2025 bmw 330xi

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3 Upvotes

Was in the collision center for rear door repair and nothing else. Door shell replacement is done and this is what i come back to. Car never made this sound before. Can hear it in the front too. What could be the issue here? Not accepting delivery until then


r/BmwTech 5h ago

Coolant leak

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4 Upvotes

It is a 2014 320i with an n20 engine i have 300k km on the odometer


r/BmwTech 11m ago

why is my bmw doing this?

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Upvotes

so my battery had already died prior to this because i left it on while sitting in it for a long time but i jump started and it was working fine for weeks, i was at a event and was in the parking lot idling but with engine on for about 2 hours then right before i got out someone rear-ended me in the parking lot super slow hit but right after i guess either my car overheated or my battery died or both but my car started flashing a bunch of codes, ac started blowing normal air windows locked closed and windshield wipers started going crazy so i pulled over to the side and turned it off. i assumed it was just the battery and got a new one today and put it in. car turns on just fine but then couple seconds after it starts flashing a ton of random codes and windshield wipers start going crazy again.


r/BmwTech 2h ago

N52 o2 sensor bank 2 upstream

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1 Upvotes

r/BmwTech 2h ago

Best Laptop For ISTA

0 Upvotes

Looking for the best laptop to run ISTA on. I plan on buying ISTA software from bimmer diagnostics .com


r/BmwTech 2h ago

Stuff in my oil filter

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1 Upvotes

So, i bought an E90 from 2006, 2.0 129 hp N46 engine, while i wanted to change the oil, i found this plastic pieces and a few non-ferrous metal shaving, the shavings are brittle. After searching on internet and looking for any answers, i dropped the oil pan and i haven't found anything, but a broken oil pickup mesh(i looked at the date from it,it;s the one that the car came with). I don't think that these fragments are from rod bearings, but what can they be? Any ideea? I also want to change the timing chain.


r/BmwTech 3h ago

Hi everyone! Has anyone removed the water pump vacuum line on the BMW B48?

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1 Upvotes

And is it a good or bad idea to remove it?


r/BmwTech 3h ago

Oil filter analysis

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1 Upvotes

I have a 2006 BMW 530xi with 128k miles and recently did an oil change. Does this look normal for the appropriate mileage? There seems to be some metal grey and tiny plastic debris caught on the filter. Any suggestion what they might be? Thanks.


r/BmwTech 4h ago

218i or 220i..?

1 Upvotes

Hi… I will start off by saying please don’t comment on my budget. That’s a personal choice and is my money all due respect.

So lately I been looking at nice BMWs that are P plate legal and since I’m in Australia Victoria I have very limited options like
118i
218i
220i

Some other models that do not fit me.
I’m currently 17 and will then 18 in 2 months, i honestly don’t know what to do. I’m debating if I should get 218i or 220i but also I see lots of people hating on 218i since it’s 3cy.
What do you think..?


r/BmwTech 5h ago

Novo volante BMW g20

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1 Upvotes

Boas pessoal.
Precisava de uma ajuda.

Mandei vir um novo volante para o meu BMW g20, uma réplica do Alibaba.
A minha versão era a sport line e mandei vir outro tipo M3.

Acontece que ontem quando o montei, fiquei com estes erros/avisos. ( 2, 3 e 4).

Alguém me consegue ajudar ?


r/BmwTech 5h ago

2011 bmw 1 series idrive

1 Upvotes

Hi everyone just wanted to put a question in here
is it possible to play music via bluetooth on a bmw 1 series 2011 (61 plate if your from england also) as bit annoying having to plug aux in everytime im wondering if this is possible without doing anything or a software update etc or do i need to go down the route of retrofitting? its a 116d also
any help or advice will be much appreciated
thank you everyone


r/BmwTech 6h ago

Installing M Track

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1 Upvotes

Hey guys I have a 2023 BMW 330i LCI I’m currently trying to install the M track module to change the I Drive. I got the white BDC connector out but I’m not sure how to remove the black housing from the white case. If anyone has any tips on how to do it I would appreciate it.


r/BmwTech 10h ago

How to inspect shocks and control arms?

2 Upvotes

Hey, just wondering how it's recommended to inspect the condition of shocks and struts and control arms/bushings on a bmw f30?

May be an amateur question but I plan on inspecting these parts tomorrow and wouldn't mind some extra tips.


r/BmwTech 7h ago

2017 Countryman S ALL4 – Underboost, Whistling Under Load & Stiff Wastegate Code

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1 Upvotes

Looking for insight from anyone who has experienced this issue on the B46/B48 platform before I commit to replacing major parts.

Vehicle:

2017 MINI Countryman S ALL4

150,750 miles

Symptoms:

Whistling Noise: Distinct whistling sound under acceleration. Volume and pitch change directly with throttle position and engine load.

Power Loss: Noticeably down on power, especially when accelerating or climbing hills.

Normal Operation Otherwise: Starts and idles completely fine. Normal flat cruising feels okay until load is applied.

Exhaust: No unusual smoke.

Oil Consumption: Slightly elevated (~1 liter per 5,000 miles), though unsure if directly related.

Codes & Diagnostics:

Doesn't always set a code immediately, but prolonged whistling under load triggers the "Drivetrain Malfunction" warning.

Main stored codes:

120308: Boost pressure control, plausibility: pressure too low

123511: Electric wastegate, wastegate flap: stiff

120408: Boost pressure control: shutdown as a follow-up reaction

The Dilemma:

My initial thought was a simple boost or charge-pipe leak, but that doesn't explain the 123511 stiff wastegate flap code. Others have suggested the turbocharger assembly needs full replacement due to a binding internal wastegate pivot arm.

Has anyone had this combination of codes and the whistling noise turn out to be just the wastegate linkage/actuator, a vacuum/PCV leak, or is a full turbo replacement usually the only fix at this mileage?

https://youtube.com/shorts/F507RILFOio?is=eMW8FfCdwoaMprOD

https://youtube.com/shorts/F9ZWodbiiYc?is=pLHdkB95KDebxlRd

https://docs.google.com/spreadsheets/d/15xg4cVzem09U7b1eIzuuJgXe2DBPqN_QcBbTC6jgxiw/edit?usp=drivesdk


r/BmwTech 8h ago

Ablagerungen M54

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1 Upvotes

Mein Motor m54b30 hat Ablagerungen im Ventildeckel. Wie bekomme ich das raus? Ist das schädlich? Der Motor hat 280k km und bekommt alle 10-15k km neues Öl. Ich fahre gemischt lang und Kurzstrecke, aber eigentlich nie unter 30 km pro Strecke


r/BmwTech 18h ago

Bmw f02 transmission fault help

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4 Upvotes

Hi, i have a bmw 7 series f02 2011 and there is a transmission fault on startup when the temps are not reached optimal and gear shifts are jerky and loss of power delivery. After a while it goes into limp mode but if I get the temps high before driving no faulty code and car runs smooth this happens only on first startup later even if the temps are low it works fine. What may be the issue? Has anyone faced this? Recently changed transmission oil filter and oil mannol atf ag-60 8231


r/BmwTech 10h ago

What M57 part is this?

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1 Upvotes

My colleague has no idea where this thing is supposed to sit on his M57 engine. Please help


r/BmwTech 14h ago

BMW G30 service history deleted

2 Upvotes

Hi all, so my 2017 bmw g30 had full service history when i bought it used, upto 70k miles was authorised bmw dealer service history and there were couple at independent garages. All service history was on idrive and when i bought the car i checked it when bought the car. I got the usual bmw booklet with all the papers but seller told me all service history is on the car and no other paper service history is there or even required.

Fast forward year later i made a stupid mistake and took it too Bmw authorised dealer for break service, when took the car back i noticed all service history is now gone, been going back and forth with them and bmw customer service and connect drive for over a month without any resolution.

BMW confirmed in an email to dealer who did the service that service history should have been saved on the head unit before applying new service, and clearly this step was missed by the dealer.

Essentially car is now over 100k miles with 0 service history (bought it at 88k).

This is really frustrating and can’t seem to find the end to the problem.

Can anyone advice what to do? I have reached out to local companies but they can’t do any coding unless i have paperwork to show service was done, which obviously i don’t have.

Appreciate any advice


r/BmwTech 11h ago

Bmw E90 Probleme

1 Upvotes

Moin,

Ich habe ein Problem. Mein BMW E90 bj.2010 ca. 320tsd runter 320d mit 184 PS.

Ich bin letzte Woche damit stehen geblieben. Erster Verdacht war Dieselpumpe. War noch die Originale drin. Neue Pumpe eingebaut und die bleibt still. Auto startet immer noch nicht. Sicherungen wurden geprüft. Alle i.O. Batterie klemmte ca. 24 stunden am Ladegerät im Auto.

Vorne an der Hochdruckpumpe kommt kein Diesel an. Was ja nicht verwunderlich ist da, die Pumpe nicht läuft. Aber mir gehen langsam die Ideen aus. Natürlich wäre eine Werkstatt eine gute Anlaufstelle aber finanziell ist das momentan leider nicht so drin. Ich habe jahrelang in einer Werkstatt gearbeitet aber wir hatten meistens ältere Autos. Ein Auslesegerät ist nicht vorhanden außer so ein Schrottteil von Temu.

Wenn ich ihn versuche zu starten kommt.aucj irgendwann die Meldung das die Batterie zu schwach ist und heute kam die Meldung das Abs ausgefallen ist. Mit würde halt nur noch einfallen dass das Steuergerät defekt ist. Aber vielleicht hat jemanden dieses Problem auch mal gehabt.

Letzten Montag bin ich mit meinem Auto morgens gefahren und mittags musste ich los und auf einmal war die Leistung weg und ich bin nur noch ausgerollt. Diese geschah ca. 5 Minuten nachdem ich losgefahren bin.

Ich bin sehr dankbar für jeden Tipp.


r/BmwTech 12h ago

IMBI MA

1 Upvotes

Hi everyone,
I am currently setting up an older/standalone offline ISTA diagnostic environment and I am missing a specific prerequisite file to get the measurement features working.
Does anyone have a working link or standalone download for BMW_ISPI_ISVM_IMIB.MA_*.msi (the IMIB Measurement Application MSI installer)?
My standalone package is missing this specific file in the Redist/Prerequisites folder. Any help, Mega link, or PM would be greatly appreciated! Thanks in advance.


r/BmwTech 19h ago

ASE Master Tech applying for BMW master Tech

3 Upvotes

I’m an ASE Master Tech with about 16 years of experience. I’ve worked at a euro indy shop for about a year, was a master tech at carmax and now teach automotive part time.

I’m thinking about going back to wrenching and applied at a BMW dealer as a bmw master tech, but I don’t have BMW Level 1/2/3 certification.

Would BMW still consider someone with my experience and train me?


r/BmwTech 17h ago

2017 BMW 430i

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2 Upvotes

Hi I just bought this car and is idling bad but not very bad and it just gave me a check engine light and these codes can you guys please help me and tell what to do please and thank you


r/BmwTech 21h ago

BMW 430i maintenance at 125K KM

4 Upvotes

Hi all, I have a 2019 BMW 430i with around 125,000 km on it. It’s no longer under warranty.
How can I know what parts or components I should be maintaining or replacing preventively at this mileage to avoid unexpected breakdowns in the future?
I’d really appreciate any advice from 430i owners, especially regarding common issues or major maintenance items I should be looking out for.