N47 2014 engines still a problem?

[anonymous-user]

My ex wife has a 2014 Toyota Verso with the BMW N47D16 engine. It has only done around 40K miles, most of which will be short stop/start trips. An engine code appeared recently which I checked which revealed

P0016 - Crank-Cam position correlation

Engine isn't apparently making any funny noises and runs fine. However, the service light came on during Covid and the oil wasn't changed so I am guessing it has done 20K miles on this oil (18k mile service intervals)

It is going in to a garage tomorrow to be looked at, but what are the chances this engine has suffered from cam chain stretch?

[ashenfie]

Maybe none. The issue is the chain comes off/breaks and the only warning signs have been a ing noise. Your issue sounds more like a sensor issue

[anonymous-user]

ashenfie said:

Maybe none. The issue is the chain comes off/breaks and the only warning signs have been a ing noise. Your issue sounds more like a sensor issue

Apparently when it was scanned the following codes appeared

P1443 - Particulate Filter Overload
P0016 - Crank Position Sensor
P06B9 - Cylinder 1 Glow Plug Circuit
P06B8 - Cylinder 2 Glow Plug Circuit

The garage (Non main dealer) changed the oil and filter and cleared the codes. £262.51 with a "Will require further investigation if warning light reoccurs" caveat.

I just don't believe that machines magically fix themselves, I am sure they will come back.

[Ninja59]

Hmm the particle filter is the DPF being overloaded, could be a sensor or generally it is full due to short journeys and not getting enough of a run.

Is it making any noise from the rear of the engine at bulkhead rattling at startup or noise pulsing where it is bouncing off the chain around 1500 - 2k rpm?

The glowplugs appear to have a fault, if it was the glowplug module then all would be inactive.

[dasbimmerowner]

Give the short stops and the particle clogging warning, I'd be taking it for a good long run on the motorway to get the particle filter nice and see if that sorts it out. I thought the N47 gave filter warning light if it was getting clogged up; not sure on the Toyota implementation of it though.

[ashenfie]

Get the glow plugs fixed first as that bound to cause the DPF to flag warnings. If fixing those issues still leave the DPF flagging errors then go to a Good DPF cleaning company. Thats one that does not try and fob you off with triggering a regen

[stevemcs]

Sounds like 2 issues, glow plugs not working causing DPF to become clogged.

Crank/cam correlation sounds like timing chain stretch.

Does it rattle on start up ?

[anonymous-user]

stevemcs said:

Sounds like 2 issues, glow plugs not working causing DPF to become clogged.

Crank/cam correlation sounds like timing chain stretch.

Does it rattle on start up ?

Well, as no surprise to anybody the warning light came back on showing all the codes again. The local garage have now diagnosed chain stretch and don't want to touch it with a bargepole.

I agree with replacing the glow plugs immediately.

But who to trust with replacing the chain, they are based in Surrey. I have found the following places but they are miles away

https://alderleyautos.co.uk/blog/bmw-n47-myth/

https://burchmotorworks.co.uk/performance-and-main...

https://kmkautos.co.uk/2016/09/14/n47-timing-chain...

No rattle on start up apparently but I have not listened myself.

[stevemcs]

There are 3 chains in total, On a Mini budget £1500 as the engine needs to come out, i would expect it to be the same with the Toyota. Also budget for clutch as the gearbox needs to come out too.

[anonymous-user]

stevemcs said:

There are 3 chains in total, On a Mini budget £1500 as the engine needs to come out, i would expect it to be the same with the Toyota. Also budget for clutch as the gearbox needs to come out too.

Clear the codes on the way to WeBuyAnyCar?