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Old 15th December 2014, 16:09   #11
Vossy
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This diesel engine is very good, BMW tried this engine in the MGR range and used it as a testbed for all their later 2 litre diesel units, it proved so reliable that it was produced in vast numbers and fitted across the BMW range including the land Rovers, if it had failed it would not have carroed the BMW name for long, its no slouch for a big car at 131bhp but at 160 it's superb.
The base unit is bullet proof as said, the ancillaries are a let down - or can be, all cars need servicing and have wear and tear problems so really its down to choice, I have had diesels for years and would buy another with 200k on it and not think twice, I doubt I could do that with a petrol engine car.
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Old 15th December 2014, 16:38   #12
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Best description I heard of the Diesel engine in the 75 was,
"It's a bit like the Queen, it just keeps going when everything around it fall apart"
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Old 15th December 2014, 16:58   #13
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Diesel is the most reliable enginen9fnthe bunch and I include the v8 in that.

I sat at just under 100mph crossing Germany none stop for 4 hours.

Would anyone risk driving the petrol cars at that length at that speed none stop?

The engine itself is fantastic, even better than the engine it was spruced from without the hassle BMW has from swirl flaps etc.

O rings, thermostat are not part of the engine, even a water pump is not part of the engine itself nor is a clutch etc.

They suffer the ancillary failures in a similar fashion to our cars yes, but unlike the v6 with its failing vis / inlet manifold / timing belts or the 1.8 or 1.8t with the risk of failure from head gasket or similar failure, or the v8 with its simple engine but crippling mpg there's no doubt the diesel is the most hassle free car to own and easily the cheapest to maintain and run especially if your doing 400 miles a week plus.
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Old 15th December 2014, 17:09   #14
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I'd be wary of pushing a 1.8 or V6 for that long, but we just did a similar journey (with 140 on the Autobahn) in the 620ti without issue. I do wish they'd worked on the T Series and fitted it to our cars.
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Old 15th December 2014, 18:57   #15
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Quote:
Originally Posted by DMGRS View Post
I'd be wary of pushing a 1.8 or V6 for that long, but we just did a similar journey (with 140 on the Autobahn) in the 620ti without issue. I do wish they'd worked on the T Series and fitted it to our cars.
Purely out of interest why would you feel wary?

I am new to 75's but have done big miles in straight six BMWs many times, they run all day like a swiss watch.

Is there something on the V6 to take extra care of?
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Old 15th December 2014, 19:04   #16
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I've never owned a diesel which I've used, but the one I did have had suffered a pretty catastrophic failure. I do drive my V6 relatively hard, and I do tend to like to press on in any car I've had, and, so far, my V6 hasn't blown up.
The diesels are good, and I know a lot of people like them, but, I remain unconvinced by them. I'll try one if I see one in a car I like, and run it for a wee while, but I'll stick to V6 engines for a long time.
The only thing I'll never buy another of is a manual gearbox'd 75 or ZT.
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Old 15th December 2014, 20:14   #17
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Quote:
Originally Posted by StephenEssex View Post
Purely out of interest why would you feel wary?

I am new to 75's but have done big miles in straight six BMWs many times, they run all day like a swiss watch.

Is there something on the V6 to take extra care of?
Thermostat, vis motors, inlet manifold, 190 needs proper oil to protect the cams, timing belts.

Bar that it's everything else usual, but those listed above you could be looking at 800 plus to sort =#
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Old 15th December 2014, 20:36   #18
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[QUOTE=roverbarmy;1866371]It's simply that the BMW engine was pushed at me by people saying that it was, in their words, "bullet-proof" and it clearly isn't. I can remember seeing diesels during the 50's, 60's and 70's that just ran and ran despite suffering all manners of abuse and expected this "bullet-proof" engine to be something similar. The same people told me to avoid the K series due to belts and HGF problems. It seems to me that belts and head gasket on a K series can be just as cheap to repair or maintain as a timing chain on the BMW ( they do appear to wear out!)
I am in no way trying to bad mouth the BMW, which has it pedigree behind it. I'm just saying that the Rover petrol engines may, in certain situations ( ie. low mileage/local use ) be a better/more useable/reliable/more economical alternative than the BMW diesel.
Mike[/QUOTE
I would say you are a little premature with your assersions if you have only owned your car for a matter of month... Perhaps discuss the subjective reliably of you k-series versus CDTI's maybe 18 months down the line. Me? I have covered 22k miles since March last year and my daily driver diesel hasn't failed me once apart from requiring a new battery
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Old 15th December 2014, 20:37   #19
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I'd be perfectly happy pushing my V6 for an extended period on the autobahn for example, I hope I will one day. I, similar to FrazzleTC drive my car harder than most would a 75 I enjoy the noise too much. Even if my engine ate itself, I could get a replacement cheap enough, and fit a timing belt much easier. Of course I don't want this to happen, but reassuring to know even if the worst happened it isn't a problem to me. I am happy to enjoy it for now.

A diesel doesn't have a desirable noise however, and with all the turbo and fuel pumps and so on (all easily repairable). Everyone who wants them are welcome to them I like my 6 cylinder though.

VIS motors aren't complicated and easily repaired, thermostats are cheap and I didn't find replacement difficult. I am even looking forward to the timing belt change. I like a challenge, not until its warm weather though.

I think it is best to buy whichever engine you want, and maintain it. Same goes for any car. Keep on top of it and make sure you enjoy it.

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Old 15th December 2014, 22:18   #20
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There's no reason why any of the 75s, or any car for that matter, shouldn't be able to cruise at high speed for long periods of time - provided the engine is not revving its 'nads off and the cooling system is up to the job (this is where your sludged up radiator with the fins rotting off will get you!) there should be no issues. Of course, there's plenty of cars where it'd be so noisy and uncivilised that you wouldn't want to for more than a few minutes, but that's not a reliability issue.
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