Great video about the N55 engine. I can attest that I've got some of the issues you mentioned - Valve cover - white smoke, water pump, thermostat and DME failure. All within 12 months. E93 -335i 110k miles but its a joy to drive..
Would love to hear your thoughts on the N55 vs the B58, market is is full of 135i/140i /335i/340i/435i/440i etc with only a few grand apart. Maybe a video with the pros and cons on going cheap on a n55 or if you think extra dosh well spent on the b58
I’m currently contemplating going to see a 14 plate M135i to use as an everyday car. I stumbled across your channel whilst looking for common issues, can I say your videos covering these cars and engines have been second to none. The car has 3 previous owners and a comprehensive FBMWSH and in unmolested form. From your videos these engines and Zf8 speeds are pretty solid unless you abuse them. It’s also good to know some failure points that I could address as preventative maintenance so I’m never left stranded. I’m quiet familiar with the modern BMW software and coding that’s used as I work for Rolls Royce in Goodwood, it’s quiet simple stuff decently written and straight forward to diagnose. This would end up being my first BMW, had plenty of import Japanese cars and other German cars such as Audis but find they’re a bit uninspiring and sometimes difficult to live with on a daily basis. (The Audis that is).
So do I ! One of the best raw performance engines and you wouldn’t even think it has a turbo as it sounds like a naturally aspirated engine. It’s a incredible engine, now I see why Bmw continued the S55
I had a 2013 335i xdrive with catless down pipe and tune. Sold it at 100k miles. Only issues I had were the ofhg, oil pan gasket, valve cover gasket, and rear wheel bearings.
Not bad video. For your next video, I would like you to cover ... successes in converting a BMW turbo charger into supercharger ...like the ESS Twin Screw supercharger kit.
How about the Valvetronic servo motor clicky noise during unlocking or ignition. Mine does it once in a while after car has been sitting , but doesn’t seem to affect performance . Is it something worth worrying about , I just got the car and I am not too keen on opening up the valve cover. Thanks
Hey I was wondering if you can help because you have soo much knowledge with these cars. I have a BMW M135i F21 N55 engine. My cars smoking or water vaping. The weather is cold I'm just wondering if that's the case. It's not leaking water or oil. But the smoke seems excessive. What could the cause be? Any help would be appreciated
Never heard of rod bearing failure on the newer m performance engines. Only on the first Gen N55 engines that was a common issue, I know Bmw revised everything on these m performance ones as they use the S55 internals therefore the failure rate was brought to 0 that’s exactly why I bought this version and not the first version.
@@BMWDoctor by ‘newer’ engines what exactly do you mean? At which point in time did BMW start putting the newer engines in M135i? I’m curious because I want to buy a f20 M135i myself.
@@BMWDoctor Hi mate, great video. How common are the spun rod bearings on the 2010 N55 models in the UK? Recently got myself an 80k miles N55 and was aware of other common faults but only just came accross forums and videos of the spun rod bearing issue that causes engine failures and getting really worried. OFHG has been replaced 5k miles ago, had a stage 1 remap for 2 years, now stock. Appreciate your response and advice from your experience. Thanks
Gotta 2014 m235i have had a notification come on of brake service and steering service required at same time but goes away quickly steering is hard when notification is on but last for 5 - 10 seconds happened twice in 2 month span
I have a tick coming from the engine and no garage up here in glasgow can work it out..rod bearings been done..injectors done...garages say its normal but to me its defo not nornal...
Not true. Depends on car and maintenance. Do you care to share what year and version you have and what issues you are dealing with? Did you purchase the car from a private owner with maintenance receipts or did you purchase it from a dealer? You clearly heard the N55's weak areas, in which, all cars have at least a few. If you purchase superior aftermarket components and upkeep with proper maintenance, what would be the issue? Some components are simply service items. Do you have a maintenance checklist or have you just resorted to just complaining? Anyone on the internet can make a sweeping remark with no receipts. To me, the performance N55 is the most reliable recent BMW of all time! It's like an updated N52.
@@n.prince2458 hi, I thinking to buy m235i with 53k miles on it, what should I be scary? I gonna buy it from dealer and not sure how well it been maintained, I gonna bring to official bmw dealership for their diagnostic but u have any advice?
You're talking about a 2021 but showing a 2014, brilliant
Great video about the N55 engine. I can attest that I've got some of the issues you mentioned - Valve cover - white smoke, water pump, thermostat and DME failure. All within 12 months. E93 -335i 110k miles but its a joy to drive..
Would love to hear your thoughts on the N55 vs the B58, market is is full of 135i/140i /335i/340i/435i/440i etc with only a few grand apart. Maybe a video with the pros and cons on going cheap on a n55 or if you think extra dosh well spent on the b58
Probably a silly question.. are these issues still relevant to the lci 2016 m135i?
I’m currently contemplating going to see a 14 plate M135i to use as an everyday car. I stumbled across your channel whilst looking for common issues, can I say your videos covering these cars and engines have been second to none. The car has 3 previous owners and a comprehensive FBMWSH and in unmolested form.
From your videos these engines and Zf8 speeds are pretty solid unless you abuse them. It’s also good to know some failure points that I could address as preventative maintenance so I’m never left stranded.
I’m quiet familiar with the modern BMW software and coding that’s used as I work for Rolls Royce in Goodwood, it’s quiet simple stuff decently written and straight forward to diagnose.
This would end up being my first BMW, had plenty of import Japanese cars and other German cars such as Audis but find they’re a bit uninspiring and sometimes difficult to live with on a daily basis. (The Audis that is).
Love the N55, have an E90 335i with N55 and it's still been good
So do I ! One of the best raw performance engines and you wouldn’t even think it has a turbo as it sounds like a naturally aspirated engine. It’s a incredible engine, now I see why Bmw continued the S55
Love mine as well but mine is a N55 X1, just recently had to replace the intake charge pipe due to cracking at the base.
So much consistent content, nice work. This channel is a gem in the rough.
I had a 2013 335i xdrive with catless down pipe and tune. Sold it at 100k miles. Only issues I had were the ofhg, oil pan gasket, valve cover gasket, and rear wheel bearings.
Can someone tell me if these problems are still worth getting a bmw m135i 2014
This video has helped me alot thank you 😊 I love your channel
You are so welcome!
Good stuff, Doc. Keep it coming!
Not bad video. For your next video, I would like you to cover ... successes in converting a BMW turbo charger into supercharger ...like the ESS
Twin Screw supercharger kit.
Very informative video, nice to get to know something new, keep it up ;)
How about the Valvetronic servo motor clicky noise during unlocking or ignition. Mine does it once in a while after car has been sitting , but doesn’t seem to affect performance . Is it something worth worrying about , I just got the car and I am not too keen on opening up the valve cover. Thanks
Hey I was wondering if you can help because you have soo much knowledge with these cars. I have a BMW M135i F21 N55 engine. My cars smoking or water vaping. The weather is cold I'm just wondering if that's the case. It's not leaking water or oil. But the smoke seems excessive. What could the cause be? Any help would be appreciated
I have a N55 from 2015, 77,000 miles. will it have rod bearing issues? less likely to happen? or wont happen? Thanks! good vid!!
No just do oil change on time
Gotta 14 m235i curious to know what's your take on doing the transmission fluid change on these zf trans
I’m heard mix things on the carbon build up .. most owners say the newer engines don’t have any carbon build up at all
So, if there is an oil leak with smell is probably from the valve cover and if doesn't smell is probably the oil cooler gasket?
Correct !
Should I be worried about rod bearings in a 2011 135i?
Is this the same as the n55b30to?
Yep my 2012 F10 already had massive leaks of oil cooler upper and lower gaskets and valve cover leak. Arrrgh so expensive to replace.
got a question for you guys !
is it worth buying an m135i lci 2015 model with 160.000 km but well maintained ?????
defenitly if the price is right i drive one myselfe and i am in love has 140.000km on the clock and never had an issue
Thank you for the great video, but you forgot to talk about the elephant in the room. Rod bearings, should we change them or not? :)
Never heard of rod bearing failure on the newer m performance engines. Only on the first Gen N55 engines that was a common issue, I know Bmw revised everything on these m performance ones as they use the S55 internals therefore the failure rate was brought to 0 that’s exactly why I bought this version and not the first version.
@@BMWDoctor by ‘newer’ engines what exactly do you mean? At which point in time did BMW start putting the newer engines in M135i? I’m curious because I want to buy a f20 M135i myself.
@@BMWDoctor Hi mate, great video. How common are the spun rod bearings on the 2010 N55 models in the UK? Recently got myself an 80k miles N55 and was aware of other common faults but only just came accross forums and videos of the spun rod bearing issue that causes engine failures and getting really worried. OFHG has been replaced 5k miles ago, had a stage 1 remap for 2 years, now stock. Appreciate your response and advice from your experience. Thanks
@@xkukubax newer ie past 2012 so all m135i cars should count.
My m135i (2014) has 104.000 km on it. Still no valvecover gasket problem.
140000km. Valve cover gasket leaking. Stay tuned ;)
Hey great video as always...do you have much experience with s65 engine?
I'm thinking he is good at fixing old BMWs ask him a question by the vehicle a week ago have not got a response
Gotta 2014 m235i have had a notification come on of brake service and steering service required at same time but goes away quickly steering is hard when notification is on but last for 5 - 10 seconds happened twice in 2 month span
Hi bro hope it was sorted out any idea what it was?
Did this model have the electronic waste-gate?
No. Too early of production.
I have a tick coming from the engine and no garage up here in glasgow can work it out..rod bearings been done..injectors done...garages say its normal but to me its defo not nornal...
They said it's not an exhaust leak either..do you have a garage/service that I can give you the M3 and you solve and fix the problem?
BMW always have problem
Not reliable
Not true. Depends on car and maintenance. Do you care to share what year and version you have and what issues you are dealing with?
Did you purchase the car from a private owner with maintenance receipts or did you purchase it from a dealer?
You clearly heard the N55's weak areas, in which, all cars have at least a few.
If you purchase superior aftermarket components and upkeep with proper maintenance, what would be the issue?
Some components are simply service items. Do you have a maintenance checklist or have you just resorted to just complaining?
Anyone on the internet can make a sweeping remark with no receipts.
To me, the performance N55 is the most reliable recent BMW of all time! It's like an updated N52.
@@n.prince2458 imma save your question and us them anytime someone shit talks a BMW without fully explaining themselves lol
@@n.prince2458 hi, I thinking to buy m235i with 53k miles on it, what should I be scary? I gonna buy it from dealer and not sure how well it been maintained, I gonna bring to official bmw dealership for their diagnostic but u have any advice?