3.0si - 100k - not feeling itself
- Thread starter RyanB88
- Start date
Smartbear said:kis said:
As far as I know the n52 facelift engine doesn't suffer the same vanos seal issues as the m54 does, I'd be more inclined to think vanos solonoids/filters.
Swap them over with each other & see if the fault changes banks
Rob
Thanks for the suggestions so far all!
Rob - can you tell me more about the Vanos solenoids? How many is there? Are they easy to change? Are they interchangeable? Where's the best place to buy a new one/ pair for? Do you need to replace the pair like you would with suspension on both sides?
Any other info or DIY guides appreciated !
RyanB88 said:Smartbear said:kis said:
As far as I know the n52 facelift engine doesn't suffer the same vanos seal issues as the m54 does, I'd be more inclined to think vanos solonoids/filters.
Swap them over with each other & see if the fault changes banks
Rob
Thanks for the suggestions so far all!
Rob - can you tell me more about the Vanos solenoids? How many is there? Are they easy to change? Are they interchangeable? Where's the best place to buy a new one/ pair for? Do you need to replace the pair like you would with suspension on both sides?
Any other info or DIY guides appreciated !
Hi, there's 2 solonoids that are interchangeable with each other, simple to change with only one fastener on each.
It's ok to replace one as mini recently did this with our Cooper, eurocarparts sell them, I should think they're cheaper than bmw if you use their constantly available discount codes.
I'm sure I've seen guides on utube for n52 solonoid changes & how to remove/clean the filters.
Rob
Thanks again fiend your help Rob!
I've got this Saturday booked to myself to machine polish the whole car and clean out the vanos solenoid. I've reset the fault code for now and hopefully it works fine until the weekend
Found some videos helpful on YouTube.
Will update the thread with an update
I've got this Saturday booked to myself to machine polish the whole car and clean out the vanos solenoid. I've reset the fault code for now and hopefully it works fine until the weekend
Found some videos helpful on YouTube.
Will update the thread with an update
You can get an idea if the valvetronic sensor is on the way out by takeing the plastic rocker box cover off and disconnecting the multi plug from the front top of the rocker box itself.If you look down and see oil lying around the multi pins then the sensor is leaking inside.
Mine was leaking and caused a miss around 3000 revs.New sensor was £320 plus new rocker box gasket.
Mine was leaking and caused a miss around 3000 revs.New sensor was £320 plus new rocker box gasket.
Always nice when people come back to conclude problems - battery was mentioned but have to say it wouldn't have been top of my list, esp when the alternator provides all the power when the car is running and you never mentioned any starting issues. These cars certainly seem very sensitive to aged batteries causing all sorts of weird and wonderful problems.
Interesting post, made me wonder if there is an age or mileage when its a good idea to replace the battery before any of these battery related gremlins start?
So assuming mine was new with the car making it 10 years old (car is on 70k if that makes any difference) should I be considering a new one even though the car is performing well with no issues?
So assuming mine was new with the car making it 10 years old (car is on 70k if that makes any difference) should I be considering a new one even though the car is performing well with no issues?
It all depends on what conditions the battery has been kept in. Driven daily for at least an hour will keep the battery in top condition, however period of no use without a trickle charger will hurt a lot if the terminal voltage is allowed to go below 12.0V. Given a lot of these cars only have weekend use (esp during winter) I would say 10 years is time to change it out for a new one.
battery date on my car is 03..original battery by the looks of it.. 15 years old and running like a champ at the minute which is odd as it felt like it was on its way out last year with the odd electrical gremlin in the system but after its winter lay up with the charger connected its been tip top this year.. go figure, oh and btw I called the battery.. do I get a prize 
