Technical Punto JTD - Resurrected Turbo??

[JTD Monkey]

The sheer number of 330d/ 530d models that are spitting turbo's out at about 100,000 miles gives you a clue anyway... Seems to be a common problem with them.

All BMW diesels introduced to the UK (since they started in 1994 with the 325td, 325tds SE, 525td, 525tds, 525tds SE) have been turbo-charged.

No apology needed

BMW have turbocharged before; the most infamous turbo is the 3.0CSL or 'Batmobile' as it is famously known. The ultimate in turbo-lag. Nothing...




nothing...




nothing...





BANG

And they did a version of the 7 series in the late 70's early 80's that I am pretty sketchy about, but it was called the 745i and had a turbocharged 3.0 litre straight-six.

BMW are also considering turbo-charging the current 3.0 litre straight-six to give a 135i and 335i (although probably not a 535i as this would take sales from the V8 versions). It is rumoured to produce about 300bhp and would be a low-pressure turbo rather than a banzai-nutter

 

[m0nk3y]

Well, opened up in 3rd and 5th gear now.... just as I reach 3,000 rpm I get great power kick.

I will not do it when cold... the temp dial needs to be half way before it works

I let my old man have a go.. he drives a very quick Volvo T5 with a very nice turbo, and he confirmed its very similar, just not a "powerful" as his T5 (Comapiring a Punto to a T5 is a bit silly I know).

Does no one else drive a Punto JTD here ?!!?

 

[JTD Monkey]

I will not do it when cold... the temp dial needs to be half way before it works

Remind me never to buy a used car from you; by driving hard before the engine is up to temperature you are wrecking it. Quickly. Even when the coolant needle is up to temp the oil won't be as viscous as it ought to.

Does no one else drive a Punto JTD here ?!!?

They are rare, and if you are looking for someone to say 'yes, I get a huge boost too' you will be wasting your time; it shouldn't do it and I suspect there is a fault. I can't imagine you get a kick at 100 in top (3000rpm); meaningful push, yes. But a kick...

 

[gregit]

JTD owner here.....

When I first got my car it seemed pretty quick, but now over time, it feels like it has lost power, but is this due to a fault or simply getting used to the car?

Drive 130bhp Mondeo TDCi's at work, have so much fun with them, nothing, nothing, bang. Actually quicker to start in 1st and go straight to 3rd.

The punto jtd isn't quick at accleration, but on the move, the torque is what saves it.

So many times on the motorway, as you leave roadworks at 50mph in 5th gear, it just pulls to 90+ leaving many things behind.

Will eat a badly driven VTR as well.

 

[XitUp]

Yo, I've got a JTD and like yours the turbo often doesn't want to kick in in the first three gears. My car has done 124k miles so it's probably a bit knacked.

Would it be worth my while dropping in a newer engine (fiat, GM or alfa) and did the 1.9 JTD ever come with a 6 speed box?


p.s, yes,all BMW diesels are turbo equiped and the new 335c will have a twin turbo petrol engine.