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[mathewst]

I'm thinking of buying another mig.
Found one 1999 2.5td estate with auto gearbox.
Car covered around 110 000 miles and looks really ok on pics.
Didn't have a diesel mig before so need some opinions on these engines and gearboxes.
All advices are welcome

[TheBoy]

BMW straight 6 with auto gearbox isn't that great. Poor MPG, gearbox will fail soon, radiators silt up, and its gutless.

[mathewst]

What do you mean Boy about the gearbox, what excatly fails?

[TheBoy]

It just wears out. All the friction plates have no friction left.

[mathewst]

Does this mean new gearbox or the parts can be replaced?
And do you have an estimate at what mileage this usually happens?
I could always convert it to manual I suppose?

[TheBoy]

Does this mean new gearbox or the parts can be replaced?
And do you have an estimate at what mileage this usually happens?
I could always convert it to manual I suppose?

Normally about 120k.

If you are happy to strip autoboxes, its doable, but a manual TD is a much nicer beast

[mathewst]

Now you go me worried alot.
Cn these friction plates be replaced or do I need a new gearbox

[TheBoy]

Now you go me worried alot.
Cn these friction plates be replaced or do I need a new gearbox

To be perfectly honest, throw away the gearbox and either fit an AR35 (from a 3.0/3.2 - but reused the TD's torque converter and bell housing), or preferably, fit a manual.

[mathewst]

Om thanks Boy for the advice
I ll probably buy the car nd convert it later if I find problems with the gearbox.

[cem_devecioglu]

a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)

[TheBoy]

a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)

That TD lump, injection pump aside, is quite rubust if it hasn't been poorly serviced (virtually all have though). Although when it fails, its often spectacular.

It really isn't suited to the auto box though. A chipped manual one is a good, reasonably economical workhorse.  The autos have relatively poor MPG, chipping improves by about 10%, but that will kill the gearbox within a couple of hundred miles.

[cem_devecioglu]

a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)

That TD lump, injection pump aside, is quite rubust if it hasn't been poorly serviced (virtually all have though). Although when it fails, its often spectacular.

It really isn't suited to the auto box though. A chipped manual one is a good, reasonably economical workhorse.  The autos have relatively poor MPG, chipping improves by about 10%, but that will kill the gearbox within a couple of hundred miles.

imo 6 cylinders and economy is not a good match anyway..   besides if you add a heavy car and an autobox its really false economy..

[cem_devecioglu]

for the members information, here the diesel miggies are around 8000-12000 £.. (second hand) if you add the expensive repairs for turbo, injection pump and other bits.. these cars eat up your 5 years profit of diesel (unless you make galactic miles yearly) just at the beginning..
 

[TheBoy]

a diesel with 110 k miles , soon will start expensive problems here and there ..
if you have the budget to deal with that its ok..(and car must be cheap)

That TD lump, injection pump aside, is quite rubust if it hasn't been poorly serviced (virtually all have though). Although when it fails, its often spectacular.

It really isn't suited to the auto box though. A chipped manual one is a good, reasonably economical workhorse.  The autos have relatively poor MPG, chipping improves by about 10%, but that will kill the gearbox within a couple of hundred miles.

imo 6 cylinders and economy is not a good match anyway..   besides if you add a heavy car and an autobox its really false economy..

A manual TD should return around 35-40mpg day to day, unless all urban work.  My auto used to return around 32mpg.

[cem_devecioglu]

some half engine (3-4 cylinder, 0.8 -1.4  ) diesels avg around 60-70 mpg..

I bet if I have them I'll visit the fuel station once a month