What's the reputation of the N51 engine?

[128ibro]

Interested to read the enthusiasts opinions about the N51 engine?

What was the first car that had N51?

[m_thompson]

My N51 has been completely reliable. No noisy waste gates, no bad turbos, no broken charge pipe, no noisy lifters, and no oil leaks. It also has a 15 year / 150,000 mile warranty on the emissions equipment.

[128ibro]

Originally Posted by m_thompson

My N51 has been completely reliable. No noisy waste gates, no bad turbos, no broken charge pipe, no noisy lifters, and no oil leaks. It also has a 15 year / 150,000 mile warranty on the emissions equipment.

What's the MPG average on your car? Have you used the warranty before?

I think having to catalysts make the car spend more gas over time.

[Gray_Panther]

27.5mpg with mine.
Sometimes I drive hard and other times casually.
43K on mine so still somewhat new but the engine is very strong reliability wise.

[128ibro]

Woow are you driving manual or automatically? I drive 128i vert with 106000miles. I got 19.4MPG.

Are you sure that your average 27.5.

I've done road trips over 400miles with cruise control the max I got was 24MPG

[Zombie_Head]

Originally Posted by 128ibro

Woow are driving manual or automatically? I drive 128i vert with 106000miles. I got 19.4MPG.

Are you sure that your average 27.5.

I've done road trips over 400miles with cruise control the max I got was 24MPG

When i baby the car, i see 8.5l/100kms

Honestly, i did not get that classics I6 BMW NA engine to be babied, i drive it "properly" and see 10.3l/100kms.

Especially where i live, way too many curves not to enjoy...or the Germany Autobahn

When driving back home from a trip, i set the cruise control to 120kph and the OBC indicated 695km of fuel left.

[m_thompson]

Originally Posted by 128ibro

What's the MPG average on your car? Have you used the warranty before?

I get 24.5 MPG mixed city/highway with a 6MT. I can get 32 MPG on the highway if I behave.

I have not needed to use the SULEV warranty.

[m_thompson]

Originally Posted by Zombie_Head

Especially where i live, way too many curves not to enjoy...or the Germany Autobahn

When had my 128i on the A7, and had the cruise control set at 225 kph, the consumption was a lot more than 10.3l/100kms.

[Gray_Panther]

Originally Posted by 128ibro

Woow are you driving manual or automatically? I drive 128i vert with 106000miles. I got 19.4MPG.

Are you sure that your average 27.5.

I've done road trips over 400miles with cruise control the max I got was 24MPG

6 speed manual.
I take the miles driven on my trip-meter and divide it by the gallons pumped when I have a full tank.
I coast in gear to red lights and stop signs, of which there are few which I guess helps.
Some days I drive fast and other days pretty normal.