[Coorslightking]

2011 335d, 186,000 miles. So my timing chain snapped while driving slow speeds. Haven't torn into engine but i can see the cam does not move. Cheaper to fix valves myself or just get a low milage m57 engine?(3-5g's)

[floydarogers]

How many miles?

Pistons will be dented; time for a used engine.

[robnitro]

Damn, sorry about that!
Curious, are you tuned or stock with dpf?

[Yozh]

It’s recommended to replace a timing chain on M57 every 150k miles. Sux it happened but you were past the service interval.

[Persian Whisperjet]

Coors that is terrible. Have other high-mileage folks encountered this? I'm pushing 130K.

[apexit4]

Originally Posted by Yozh

It’s recommended to replace a timing chain on M57 every 150k miles. Sux it happened but you were past the service interval.

I'm quite surprised to hear that the timing chain is recommended to be replaced around 150k miles. Is this something that most owners get done as regular maintenance? I ask because this is this first time I've seen anyone on this forum suggest it as a maintenance item....

[BB_cuda]

Originally Posted by apexit4

I'm quite surprised to hear that the timing chain is recommended to be replaced around 150k miles. Is this something that most owners get done as regular maintenance? I ask because this is this first time I've seen anyone on this forum suggest it as a maintenance item....

^^ +1 on never hearing this. It would make sense though as chains stretch.

[DieselOG]

I actually remember reading somewhere on here that the timing chain was not an issue on this motor and would not have to be replaced. Looks like I may be doing a timing chain in the next 50k, rather deal with that than a motor swap

[Tambohamilton]

Originally Posted by apexit4

I'm quite surprised to hear that the timing chain is recommended to be replaced around 150k miles. Is this something that most owners get done as regular maintenance? I ask because this is this first time I've seen anyone on this forum suggest it as a maintenance item....

+1

[dmanb2b]

Stock or tuned? If tuned, which tuner? Sorry to hear this

[Pierre Louis]

Oil used? Driving style? Weather?

I hear Wisconsin has 4 seasons: June, July, August, and winter!

[Coorslightking]

Owned car for 4 months. Did all fluids/maintenance when i bought it. Deleted and tuned. 2.9 malone. Reading other post, the x5d has this issue. And about 2-3 a year seem to happen on the 335d. As for driving patterns, i was easy on it 99% of the time trying to get that 40 mpg's. Junk yard motors are $3-5,000. So im loss on what to do next. Loved the car

[Yozh]

From my research it is recommended at 150k miles but they can last to 300k and over. I could not find any BMW literature on this yet. It’s an awful job with dropping the front subframe and dropping an oil pan to get to the oil pump sprocket. All guides, tensioner and sprockets should be replaced at the same time. But hey at least you don’t have to drop a tranny as N series require.

[Spyro235]

Pretty much the first time I've heard it too.... I'm at 228k with no knowledge of previous maint. The Timing chain is quite the job, dang.

[DieselOG]

Coors did you have any symptoms of a stretched chain before it broke?

[Coorslightking]

Originally Posted by DieselOG

Coors did you have any symptoms of a stretched chain before it broke?

I did not. Car was driving great. Just had my best tank mpg wise. Fill up drove 85 home about 20 miles.

[bmwdiesel]

very up to date topic! there is a youtuber with 530d diesel never version whose timing chain snapped, only someone pointed out that he used shortly before mannol oil that doesn't have bmw ll04 certification!

I also read that timing chain is most of the time failure of the owner not changing oil properly on time, or used bad oil!

what was your oil interval change?

chain is not something that would fail! it is when the engine have restricted lubrication that causes it to fail btw!

I believe there is very rare when chain snaps due to the fatigue of the material (of course can happen but not as nearly as ppl saying you need to change it at 150k or whatever)

of course it might not be related, but I believe it is.

[Nadir Point]

Timing chain lifespan is directly proportional to oil service quality. By that, I mean using an appropriate diesel-rated oil for soot control, appropriate service interval, and filtration. There are a lot of ways to recombobulate those three things into a timing chain that wears out prematurely, lasts literally indefinitely or somewhere in between.

[ranthum]

I got a junkyard motor shipped to my door for $1375. But I'm working on tearing it down completely and do upgraded internals.

[Coorslightking]

Originally Posted by bmwdiesel

very up to date topic! there is a youtuber with 530d diesel never version whose timing chain snapped, only someone pointed out that he used shortly before mannol oil that doesn't have bmw ll04 certification!

I also read that timing chain is most of the time failure of the owner not changing oil properly on time, or used bad oil!

what was your oil interval change?

chain is not something that would fail! it is when the engine have restricted lubrication that causes it to fail btw!

I believe there is very rare when chain snaps due to the fatigue of the material (of course can happen but not as nearly as ppl saying you need to change it at 150k or whatever)

of course it might not be related, but I believe it is.

Bought the car and only put 6,000 miles on this oil. Had hotshot added. Didnt burn. No clue on previous ownerships. Thought it was an old lady car but idk.

[Coorslightking]

Originally Posted by ranthum

I got a junkyard motor shipped to my door for $1375. But I'm working on tearing it down completely and do upgraded internals.

Where did your get one so cheap. Car-parts has only close to me for $3,500 and thats the cheapest iv also seen

[ranthum]

Originally Posted by Coorslightking

Where did your get one so cheap. Car-parts has only close to me for $3,500 and thats the cheapest iv also seen

Through car-part. Motor was 1200 and another 175 to ship it from a few states over.