Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: tuckshop on 25 January 2010, 23:29:56

Title: V6 problems v BMW 2.5TD problems.
Post by: tuckshop on 25 January 2010, 23:29:56
Having a 2.5 V6 and always getting problems with the cam covers and breathers I wondered if changing to a version with a 2.5 BMW TD would still have me pulling my hair out annually.

I know what the Cam cover and breather problems are with the V6 and how to sort them having done it twice now with the proper OEM bits and the proper instructions and the proper torques etc. But its a pain.

Are there also niggly problems with the BMW 2.5 TD as well? As I am contemplating changing over.
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Omegatoy on 26 January 2010, 06:16:36
not to many off the top of me head,
1, fuel pump in tank cand die which you wont know about till it gets under 20 litres, easy fix though,
2. glowplugs can be fine one moment then expire just when you need them, usual clue is a slight missfire on starting from cold when one has failed
3, max 4.5k oil and filter changes more often if chipped
4.when std tune they are slow and not the best economy for a diesel, chipped its a damn good engine
5 autos are slugs!!!
may be acouple more but at this time of the morning i cant think of them!! :y
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Shackeng on 26 January 2010, 10:38:43
Quote
Having a 2.5 V6 and always getting problems with the cam covers and breathers I wondered if changing to a version with a 2.5 BMW TD would still have me pulling my hair out annually.

I know what the Cam cover and breather problems are with the V6 and how to sort them having done it twice now with the proper OEM bits and the proper instructions and the proper torques etc. But its a pain.
Are there also niggly problems with the BMW 2.5 TD as well? As I am contemplating changing over.

Had my td 11 years, 95k now, only engine problems have been one set of Gloplugs 5 years ago.! Go figure!
Gives me a warm glow reading about all the various problems of the petrol models, esp. the V6's, .
 ;D ;D ;D 8-) ::) :y
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: tunnie on 26 January 2010, 14:08:41
i'd stick with your V6, you know its history  :y

Trouble is with TD, if you get an abused one, its very hard to get it back to mint again, unless your really handy with the tools.

Only other one i can think to add is the TD should never be allowed to over heat, if it has, they can crack heads.
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Dave Elite on 26 January 2010, 14:11:07
Quote
i'd stick with your V6, you know its history  :y

Trouble is with TD, if you get an abused one, its very hard to get it back to mint again, unless your really handy with the tools.

Only other one i can think to add is the TD should never be allowed to over heat, if it has, they can crack heads.

Good advice :y
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: MickAP on 26 January 2010, 18:28:58
Quote
Having a 2.5 V6 and always getting problems with the cam covers and breathers I wondered if changing to a version with a 2.5 BMW TD would still have me pulling my hair out annually.

I know what the Cam cover and breather problems are with the V6 and how to sort them having done it twice now with the proper OEM bits and the proper instructions and the proper torques etc. But its a pain.

Are there also niggly problems with the BMW 2.5 TD as well? As I am contemplating changing over.

Yep, finding a good one that's been looked after as mentioned here, regular oil changes.
Stopped doing them 2001 so not many to be had, well Facelift one's anyway :y

Mick ;)
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: pedroMV6 on 26 January 2010, 19:07:18
If you go for a TD (makes alot of sense to me, and I love my MV6!) then don't chip it of it's an auto (unless an AR35 box???) - it'll die a dishonourable death inside 1000 miles.
Get a manual and enjoy more power and better mpg.
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Turk on 26 January 2010, 20:00:02
Quote
If you go for a TD (makes alot of sense to me, and I love my MV6!) then don't chip it of it's an auto (unless an AR35 box???) - it'll die a dishonourable death inside 1000 miles.
Get a manual and enjoy more power and better mpg.
Mine didn't make it to 200 miles.  ::)


Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Omegatoy on 26 January 2010, 20:55:41
144 views so far and only 6 faults mentioned? guess that says how good the lump is!! :y
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: MickAP on 26 January 2010, 21:06:22
Quote
144 views so far and only 6 faults mentioned? guess that says how good the lump is!! :y

Had a conversation the other day about which Omega I would keep, if I had to part with one.
Now forgetting the obvious different in MPG between the two.......The 2.2 would have to go :'( even though it's smoother and quieter to drive, I just love :-* the chipped TD and can't bear to part with it.

Mick :y

Edit No I haven't got a car for sale.......yet!
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Omegatoy on 26 January 2010, 21:08:12
Quote
Quote
144 views so far and only 6 faults mentioned? guess that says how good the lump is!! :y

Had a conversation the other day about which Omega I would keep, if I had to part with one.
Now forgetting the obvious different in MPG between the two.......The 2.2 would have to go :'( even though it's smoother and quieter to drive, I just love :-* the chipped TD and can't bear to part with it.

Mick :y

Edit No I haven't got a car for sale.......yet!

lol thats exactly why i sold my dti and kept my old 2.5 it just aint the same!!! :y
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: tunnie on 26 January 2010, 21:12:44
Quote
Quote
Quote
144 views so far and only 6 faults mentioned? guess that says how good the lump is!! :y

Had a conversation the other day about which Omega I would keep, if I had to part with one.
Now forgetting the obvious different in MPG between the two.......The 2.2 would have to go :'( even though it's smoother and quieter to drive, I just love :-* the chipped TD and can't bear to part with it.

Mick :y

Edit No I haven't got a car for sale.......yet!

lol thats exactly why i sold my dti and kept my old 2.5 it just aint the same!!! :y

Same reason i keep my 2.2 over a V6  :)
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Shackeng on 26 January 2010, 21:25:56
Quote
Quote
If you go for a TD (makes alot of sense to me, and I love my MV6!) then don't chip it of it's an auto (unless an AR35 box???) - it'll die a dishonourable death inside 1000 miles.
Get a manual and enjoy more power and better mpg.
Mine didn't make it to 200 miles.  ::)


Now on 25k on a chipped td with an AR25 ::)
(But I am picking up an AR35 this weekend!!!)


Title: Re: V6 problems v BMW 2.5TD problems.
Post by: TheBoy on 26 January 2010, 21:39:47
If a TD has been abused, the chains will be shot.  Officially a sump and head off job to replace (sod of a job).

If the engine does let go, and it seems a fair few do, its normally spectacular - ie, conrods making a break for freedom.

Autos chew gearboxes, even if unchipped.

They silt up their rads badly.

The waterpumps were designed by a particularly thick german. They fail, which causes overheating. Don't let this lump overheat, it will do a lot of engine damage.

The viscous fans fail. Take them off, throw them away.

Change the oil at least every 3000 miles. The recommended 4.5k miles is too long :o

The aux tensioners seem to fail quickly, as do the alternators.

Temp sensor in FIP tends to fail. New FIP wrong side of £1k, not sure if sensor can be changed on its own.

Lift pump in tank fails.



Thats about all I can think of specific to the TD
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: tuckshop on 26 January 2010, 22:10:45
break !

looks like 'tis better the devil you know......
................ tho my CDX '99 facelift needs to be an ELITE
- an' needs leather  ::)
- an' needs new lid for the centre arm rest  :(
- an' maybe needs to be an estate  :D
- an' the jury's out on the dark bottle green colour !! :-/
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Seth on 28 January 2010, 20:12:19
Quote
If a TD has been abused, the chains will be shot.  Officially a sump and head off job to replace (sod of a job).

If the engine does let go, and it seems a fair few do, its normally spectacular - ie, conrods making a break for freedom.

Autos chew gearboxes, even if unchipped.

They silt up their rads badly.

The waterpumps were designed by a particularly thick german. They fail, which causes overheating. Don't let this lump overheat, it will do a lot of engine damage.

The viscous fans fail. Take them off, throw them away.

Change the oil at least every 3000 miles. The recommended 4.5k miles is too long :o

The aux tensioners seem to fail quickly, as do the alternators.

Temp sensor in FIP tends to fail. New FIP wrong side of £1k, not sure if sensor can be changed on its own.

Lift pump in tank fails.



Thats about all I can think of specific to the TD

Yes, don't I know it - been there and wore the T-shirt!!!!!!

BUT, my latest 2.5TD runs like the proverbial dream, and that's in un-chipped form!
Although you won't win any races, you've go to drive it like you stole it. Keep the big straight-six 'on song' and it'll happily cruise at 80+ mph all day long.
I know of two OOFers hereabouts who attain 33mpg from theirs - so pretty creditable economy.
Forget a 2.5TD auto though - they seem to be unhappy chappies. 
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Squealey on 28 January 2010, 20:59:42
My chipped 2.5TD with AR35 (ex The Boys) never drops below 34mpg around town and on more than one occassion i've had over 50mpg on long runs, so I wouldn't say its too bad on the dark stuff.

As long as you allow for the 2 second, let me think about it, delay when you floor it off the lights, then its not at all sluggish either.

Just had to replace the thermostat, exp tank cap and checked the water pump as it was begining to overheat slightly. That along with the battery and std service items is just about all i've spent on it since I got it 10 months and 17,000 miles ago.

I honestly cant think of another car, for the price I paid, that could have a better mixture of speed, economy, comfort and toys. (I would have loved a Lexus LS400 but couldn't put up with 16mpg on a good day)
Title: Re: V6 problems v BMW 2.5TD problems.
Post by: Shackeng on 29 January 2010, 13:14:51
Quote
Quote
If a TD has been abused, the chains will be shot.  Officially a sump and head off job to replace (sod of a job).

If the engine does let go, and it seems a fair few do, its normally spectacular - ie, conrods making a break for freedom.

Autos chew gearboxes, even if unchipped.

They silt up their rads badly.

The waterpumps were designed by a particularly thick german. They fail, which causes overheating. Don't let this lump overheat, it will do a lot of engine damage.

The viscous fans fail. Take them off, throw them away.

Change the oil at least every 3000 miles. The recommended 4.5k miles is too long :o

The aux tensioners seem to fail quickly, as do the alternators.

Temp sensor in FIP tends to fail. New FIP wrong side of £1k, not sure if sensor can be changed on its own.

Lift pump in tank fails.



Thats about all I can think of specific to the TD

Yes, don't I know it - been there and wore the T-shirt!!!!!!

BUT, my latest 2.5TD runs like the proverbial dream, and that's in un-chipped form!
Although you won't win any races, you've go to drive it like you stole it. Keep the big straight-six 'on song' and it'll happily cruise at 80+ mph all day long.
I know of two OOFers hereabouts who attain 33mpg from theirs - so pretty creditable economy.
Forget a 2.5TD auto though - they seem to be unhappy chappies. 

Not me ;D ;D ;D 8-) 8-) 8-) ::) ::) ::) :y :y :y