OIL LIFE
Author
Discussion

Middlechild

Original Poster:

13 posts

91 months

Wednesday 3rd April 2019
quotequote all
Having bought a new BMW X4 350D two years ago the question has arisen as to when the oil should be changed!
It was built in March 2016, Pre registered in September 2016, then sold to me by BMW as a new car in April 2017.
It has now done 8k miles in two years and I am told it should have had its oil changed in Sept 2018 when it was two years after preregistration, not the normal 2 years after it was bought and used.
Surely oil, not in use, does not deteriorate that quickly?
If its life span is so limited without use should it have been changed two years after the engine was built back in early 2016?
This must apply to all preregistered vehicles.

SteBrown91

3,158 posts

159 months

Wednesday 3rd April 2019
quotequote all
Service indicators are set at PDI which is just before/at registration. Your car is now 8 months overdue a service so will have a void warranty.

Middlechild

Original Poster:

13 posts

91 months

Wednesday 3rd April 2019
quotequote all
So a car sat in a pound for a year but pre registered awaiting sale is loosing service life for the eventual owner even though its not being run?
When you buy a car, as I did I was told it needed servicing in two years time. But apparently not so!
Surely the PDI should be done just before the vehicle is handed over to the customer otherwise it is not a pre delivery inspection, it is only a storage compound unnecessary process.

anonymous-user

84 months

Wednesday 3rd April 2019
quotequote all
Warranty (and the service intervals) usually commence from vehicle first registration date in my experience.

Never owned a BMW or a pre-registered car though...

Ninja59

3,691 posts

142 months

Wednesday 3rd April 2019
quotequote all
Warranty, Service Intervals run from date of registration which for BMW is 24 months or 30,000 km.

Connected Drive apps are started as "services" 90 days after build (unless they are activated sooner) if memory serves.

Irrespective of it saying 24 month or 30,000 km there is no way I would leave oil in a car for those sorts of mileages or timescales. Oil is cheap.


Slushbox

1,484 posts

135 months

Wednesday 3rd April 2019
quotequote all
"It has now done 8k miles in two years and I am told it should have had its oil changed in Sept 2018 when it was two years after preregistration, not the normal 2 years after it was bought and used."

One of the downsides of buying a pre-reg. Service and factory warranty dates seem to kick off at the first reg. date.

As to oil service life, it depends on how the car is driven, short cold journeys and diesels generally equates to 'shorter oil change intervals'.

The 'time-period oil change or no warranty' thing is a bit of a scam, especially on low-annual mileage cars.

Don't know if BMWs have active oil condition monitoring or service light indicators, which might give you a bargaining point.

Earthdweller

19,632 posts

156 months

Wednesday 3rd April 2019
quotequote all
Middlechild said:
Having bought a “ Second hand” BMW X4
It was built in March 2016, Pre registered in September 2016, then sold to me by BMW as a “Used Car” in April 2017.
Fixed the quote for you smile

Oil service due 2 years after date of registration, but your brake fluid will be from date of manufacture which on the X4 is three years .. so that is now a month overdue

So service should have been Sept 18 and Brake fluid March 19

Servicing is per mileage or at latest every two years smile


Ransoman

884 posts

120 months

Wednesday 3rd April 2019
quotequote all
So if a dealer has a car in stock that has a 1 year service interval (Abarth 500), if the car doesn't sell and they still have it in stock a year later, does the dealer have to service it even though it only has potentially 1 mile on the clock?

Earthdweller

19,632 posts

156 months

Wednesday 3rd April 2019
quotequote all
Hasnt the car been flashing up service due, service now and now service overdue every time you start it ?

You can check in the idrive menu when everything is due

I’m surprised that you are indeed suprised !

Earthdweller

19,632 posts

156 months

Wednesday 3rd April 2019
quotequote all
Ransoman said:
So if a dealer has a car in stock that has a 1 year service interval (Abarth 500), if the car doesn't sell and they still have it in stock a year later, does the dealer have to service it even though it only has potentially 1 mile on the clock?
If the car hasn’t sold and is still brand new ... no

If the car is secondhand and is subject to a time limit on servicing intervals then ..,Yes

But, even in scenario one .. I’d want the car servicing and oil changing before I bought it purely due to how long the oil had been sat in it

BMW services are condition based ( mileage and use ) or time based ( max 2 years ) for cars that don’t do enough miles to trigger the CBS


Earthdweller

19,632 posts

156 months

Wednesday 3rd April 2019
quotequote all
Slushbox said:
"It has now done 8k miles in two years and I am told it should have had its oil changed in Sept 2018 when it was two years after preregistration, not the normal 2 years after it was bought and used."

One of the downsides of buying a pre-reg. Service and factory warranty dates seem to kick off at the first reg. date.

As to oil service life, it depends on how the car is driven, short cold journeys and diesels generally equates to 'shorter oil change intervals'.

The 'time-period oil change or no warranty' thing is a bit of a scam, especially on low-annual mileage cars.

Don't know if BMWs have active oil condition monitoring or service light indicators, which might give you a bargaining point.
They do have both

The idrive in the dash will have all the info

Mine is due a service in 700 miles and has been warning me every time I get in it since it was showing 2000 miles to go

I don’t think the car will be on the op’s side on this one

I’m suprised the selling dealer hasn’t phoned or written to him to tell him the service was due

DuncB7

353 posts

128 months

Wednesday 3rd April 2019
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Opieoilman shout

Would be interested to hear thoughts from technical perspective - that is oil degradation in a largely brand new engine lay idle for period of time.

ChocolateFrog

34,954 posts

203 months

Wednesday 3rd April 2019
quotequote all
Oil does deteriorate even without the engine being used.

For one they have a TBN which helps protect against acid corrosion due to condensation in the engine, once that's used up the oil slowly turns acidic and will eat away at all those soft bearing surfaces.

Scootersp

4,125 posts

218 months

Wednesday 3rd April 2019
quotequote all
Buying a new X4 but at the same time querying a £100 or so spend after 2 years to do an oil change seems a strange stance?

berlintaxi

8,535 posts

203 months

Wednesday 3rd April 2019
quotequote all
Middlechild said:
Surely the PDI should be done just before the vehicle is handed over to the customer otherwise it is not a pre delivery inspection, it is only a storage compound unnecessary process.
The PDI was completed before it was handed over to the customer, the dealer will have had to buy it off the manufacturer to register it, the fact he then parked it up for 6 months is irrelevant.

Earthdweller

19,632 posts

156 months

Wednesday 3rd April 2019
quotequote all
berlintaxi said:
Middlechild said:
Surely the PDI should be done just before the vehicle is handed over to the customer otherwise it is not a pre delivery inspection, it is only a storage compound unnecessary process.
The PDI was completed before it was handed over to the customer, the dealer will have had to buy it off the manufacturer to register it, the fact he then parked it up for 6 months is irrelevant.
Absolutely 100%

The OP bought an 8 month old second hand car

The warranty and service intervals will have been set from the date that it was sold new to its first keeper

The fact that the first keeper was either BMW UK or a franchised dealer and that they did not drive it during that time is completely irrelevant

Earthdweller

19,632 posts

156 months

Wednesday 3rd April 2019
quotequote all
ChocolateFrog said:
Oil does deteriorate even without the engine being used.

For one they have a TBN which helps protect against acid corrosion due to condensation in the engine, once that's used up the oil slowly turns acidic and will eat away at all those soft bearing surfaces.
My X3 which gets normal use gets its oil changed as per the idrive or two years

My Z4 which is a toy gets it changed annually even though it will do only 3-4K each year

anonymous-user

84 months

Wednesday 3rd April 2019
quotequote all
Totally agree.

With modern oils I reckon 2 years is fine so long as you haven't hit the mileage limit - UNLESS you're starting the car every day and driving one mile to work or to the railway station.

The bottom line is it's all about the "overall use cycle" rather than just time or mileage.

Middlechild

Original Poster:

13 posts

91 months

Wednesday 3rd April 2019
quotequote all
I have been advised by BMW service the warranty is till Sept 2019, three years from Pre Reg date, and brake fluid change June 2019.
I thought the warranty was from the purchase date, being a new vehicle, for three years!
Apparently the MOT is also due from pre reg date not purchase date, so in reality its a pre used vehicle when bought but with no miles on the clock!

Pica-Pica

16,678 posts

114 months

Wednesday 3rd April 2019
quotequote all
Middlechild said:
I have been advised by BMW service the warranty is till Sept 2019, three years from Pre Reg date, and brake fluid change June 2019.
I thought the warranty was from the purchase date, being a new vehicle, for three years!
Apparently the MOT is also due from pre reg date not purchase date, so in reality its a pre used vehicle when bought but with no miles on the clock!
Yes, of course. It is the age of the car, not since when the first (proper) owner got it. Why would it be otherwise?
I doubt a pre-reg car would have zero on the clock, it would have to have been driven at some stage; from manufacturing plant to plant’s compound, plant compound to truck or railway wagon. From there to the destination country’s delivery hub. From that hub to truck. Off truck to dealer. That would be I guess 2 miles minimum. Mine was 9 miles as a pre-reg, and after I test-drove it, I had put a further 12 miles on it, when I then bought it on 7th Feb 2017, I recognised and understood the MOT due date would be late November 2019. No issues with that.


(I know speedometers and instrument clusters used to be tested at the supplier, but were then wound back to zero, as they were not yet in a car).


Edited by Pica-Pica on Wednesday 3rd April 21:03


Edited by Pica-Pica on Wednesday 3rd April 21:06