50i a bit laggy?

[anzer]

interested in new 50i owners views ... there's a few people now I've heard from who are saying it can have a lag delay off the line ....any other feedback ?

[Fraser]

If it's anything like the X6 50i, there's no lag issue. The new X5 also has the 8-speeder with a lower first gear, I presume.

If you are really worried, go drive a X6 50i at a dealer. There's a few second-handers getting about.

[cmyX6go]

Originally Posted by Fraser

If it's anything like the X6 50i, there's no lag issue.

No lag here

[vandne]

Don't notice any lag on mine. Very smooth, even my wife commented on how smooth the shifting feels compared to our old X5 (06 4.4i). Definitely pulls hard between 3-4k rpm.

[bimmer_buachaill]

Any car with turbos has some kind of lag off the line. I'm used to driving naturally aspirated engines with great throttle response and I really feel any lag when it's there.

Manufacturers have gotten much better over the years making it less and less noticeable. If this were a real issue, BMW could add a small electric motor to spin the turbos for a better launch but it's just not an issue in practice.

Keep in mind on the 50i that even without the turbos, this is a great 4.4 liter V8. I think the only reason it's noticeable is that things get really crazy when the turbos spool up.

I view it as a completely appropriate compromise - you get the increase in power/torque and better mileage with a little lag off the line.

As usual, test drive before you buy.

[Fraser]

Originally Posted by bimmer_buachaill

I think the only reason it's noticeable is that things get really crazy when the turbos spool up.

I view it as a completely appropriate compromise - you get the increase in power/torque and better mileage with a little lag off the line.

You say the lag is noticeable but have you actually driven a 50i?

[SANguru]

huh??? you obviously have not driven either the N54 or the TT 4.4.

Originally Posted by bimmer_buachaill

Any car with turbos has some kind of lag off the line. I'm used to driving naturally aspirated engines with great throttle response and I really feel any lag when it's there.

[JCL]

Originally Posted by SANguru

huh??? you obviously have not driven either the N54 or the TT 4.4.

Exactly what I was thinking. My N54 doesn't exhibit any lag. I have been driving (with a license) for 34 years, and have driven many turbocharged vehicles. Some had lag. That is now old news.

[Fraser]

Yep, no lag with the N54 nor with the 50i.

[anzer]

ok ...thanks everyone ..perhaps it just a relative thing based on each persons experience. .. have driven the 135i and 335i and noticed some degree of lag ... but once again that's just me ... on the X5 35d I do notice some lag ... not really from standing start because you can overcome that with a little bit of rev-lifting before launch ...more when your crawling and then punch it ..it just takes a split second for the smaller turbo to wake up and kick ... a bit less noticable in DS mode ..but still there ...wonder if the new twinscroll single turbo has sorted that problem out ?