Selling and buying petrol will give you best results in my opinions

 

Nothing you can do. BMW make some of the quietest too.

 

I don't have it but always wonder if under bonnet insulation makes a difference. :?

The engine cover helps a little (removes injector tick to some extent), but the section attached to the bonnet makes very little difference.

Try changing your glow plugs, they stay on until the coolant warms up (70C ? - don't quote me on that!) so help things for longer than people realise.

 

The F20 116d I've got while mine is in the garage is fecking loud.

 

Selling and buying petrol will give you best results in my opinions

Loool I will one day.. But not in any position to ATM.. This will have to make do..

 

Ear defenders

 

I don't have it but always wonder if under bonnet insulation makes a difference. :?

The engine cover helps a little (removes injector tick to some extent), but the section attached to the bonnet makes very little difference.

Try changing your glow plugs, they stay on until the coolant warms up (70C ? - don't quote me on that!) so help things for longer than people realise.

I probably do have a fault code stored for the glow plugs.. Hasn't affected the drive though.. Will consider this.

 

Loool I should of known some will be around to make jokes [emoji23]

 

I don't have it but always wonder if under bonnet insulation makes a difference. :?

Yeah I've got that.. God knows if it's making a difference.. It did cross my mind to pad it up more

 

I was thinking maybe someone knew of an additive I could throw in that works..

 

How about a rudeboy stereo system? At least you won't hear the engine under your bangin' choons

Matt

 

Loool I already got a rude boy system.. Jk it's not really that rude.. Just some logic 7 speakers and tweeters.

I don't actually hear the noise much from inside the car.

Loool it's from the outside.. My parents think my car is broken [emoji23] it's embarrassing explaining its a diesel to them..

 

Brace yourself

This is what it sounds like loool all hell breaking loose there's also a screeching sound I get.. Hopefully you'll notice..

It goes when the cars warm though. [emoji17]

 

How about a rudeboy stereo system? At least you won't hear the engine under your bangin' choons

Matt

Rudeboy stereo is where it's at . Guilty as charged in all seriousness.

 

Hard to describe but any idea what that whisper kinda noise is Marco?

Alternator belt or??

 

Yeah, start with the serpentine belt, follow your ears basically!

 

run a thicker LLL04 spec oil (5w40) is what I use on my N47 which isn't quiet at all!, helps a little....just noticed its got no DPF, so can probably run oil even thicker than this, non LL04 spec...I may be wrong...

 

Turn it off. (Still needs LL04 oil)

 

If my car sounded like that the first place I would be driving it to would be a garage to get the faults diagnosed. It's not a very healthy sound is in.

 

I'll have it checked ASAP.. Only problem is the whispering/chirping noise disappears once the engine is warm so before I even arrive at the mechanics it's hard to repeat the noise.. They'll just say it sounds like a normal diesel and try to sell me oil flushes..

 

The chirping noise is the fan belt tensioner m47 engines suffer from this.mine is doing it till warmed up

 

The chirping noise is the fan belt tensioner m47 engines suffer from this.mine is doing it till warmed up

Top man "thumbs"

 

I would have assumed that was a aux belt etc

Shouldn't be much to replace either.

 

I find my 120d quieter with 0w30 weight oil...

 

Mines not too bad but maybe the piezo injectors in the 120d are a bit quieter than on a 118d

What is your mileage? noises can be caused by a few things on M47 as I've covered 250k miles in mine have a good idea of what causes most of them! lol!

Tensioner bearing is normally first to go many mistake it for alternator bearing these do not fail I had 176k miles out of it and was still perfect working order replaced it as I had a newer one with new engine I stuck in after old one decided to ingest its own engine oil through the turbo. PS pump also was totally fine and had no issues. The crank pulley has a special damper in it these do go on occasion although mine has been fine as well with high miles but neighbours 320d went at 100k miles and my god fathers Rover 75 went around same miles too, luckily have couple spare but they are PIA to get off!

The other culprit is the other bearing on the other plastic pulley this normally goes after the tensioner but I replace both at the same time as TBH they aren't expensive and Eurocarparts does deals at weekends with 10-15% off from time to time, the tensioner is more expensive they are also identical to BMW parts but 1/3 of the cost. Normally when the belts start to look tired I change the belts and the plastic pulley's. Also the other thing that tends to make a bit of racket and causes loss of coolant slowly then very dramatically is the water pump they tend to last to about 100k-120k miles depending on how hard you've driven the car if you purely do motorway miles and stick to 60mph then it may last a lot longer but I don't know anyone here that drives like that!! For some reason all BMW water pumps seem to let go at around this mileage I replaced mine with another make that was much cheaper and looks to be better made metal pulley no plastic.