Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: zirk on 26 January 2008, 20:06:48
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As I drive mainly in London I normally take my 2.5TD Meggy for a good thrashing once in a while, it seems to get rid of all that crud and smoke and (I feel) makes the thing run better. Anyhow decided to do the same with my ex missus today (yea shes got a CDX 2.5TD donated by yours truley), Ive not driven her car for about six months now so wasn't too sure what to expect.
The outcome was whislt driving it on the M25, it seemed a bit slugish between 60 and 70, so decided to give it a good bollocking!, only to find it wouldn't do more than 70 / 73 Mph?? no matter what I did, slow build up / fast kick down, it was having none of it.
The only difference between mine and hers is Manual and Auto (Her's), I really dont want to be throughing lots of money at this, as she doesn't do a lot of Motorway miles, but I'm kind of thinking this is going to get worse and not better.
Any idea's, simple thing's I can check?
Chris.
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speed limit is 70mph
nothing's wrong ;D
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speed limit is 70mph
nothing's wrong ;D
Yea, right, tell that to my MV6.
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is it hitting the red line? gearbox not changing up?
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is it hitting the red line? gearbox not changing up?
No it seems and sounds like its doing what it should be doing (apart from the speed thing) I use to own this car before donating it, and all was well, although I must admit didn't hardly do a lot of M miles then.
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is it ok getting to 70. is it smoking badly?
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is it ok getting to 70. is it smoking badly?
No, thinking I would noticed that but I can go for another spin tomorrow.
Its strange because it all seems normal and seems to pull away from standing as normal, this is my third TD meggy now, the first 2 being Auto's, never realy impressed with the way they pulled away, seemed to be a lot of noise before it actually gets going, Ive always put that down to a underpowered engine - Autobox - Heavy Car!, hence I drive a manual now.
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Check fuel filter. Check air filter. Get the engine ecu read in case there are stored codes.
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Check fuel filter. Check air filter. Get the engine ecu read in case there are stored codes.
Ok, its never shown a EM light (according to a woman), if I do a paper clip test will that show me stored code's?
The Fuel and Air thing will have to wait untill next week, is there any loose or split pipes I should be checking for?
The only other thing I did notice but forgot to mention was when it is flat out ie 70 (and I mean 70 no more) it does change down on the slightest hill and then continues to strugle sttill at 65 - 70?
Oh, and I did check the brakes I can easerly push it!
Chris
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Check fuel filter. Check air filter. Get the engine ecu read in case there are stored codes.
Ok, its never shown a EM light (according to a woman), if I do a paper clip test will that show me stored code's?
The Fuel and Air thing will have to wait untill next week, is there any loose or split pipes I should be checking for?
The only other thing I did notice but forgot to mention was when it is flat out ie 70 (and I mean 70 no more) it does change down on the slightest hill and then continues to strugle sttill at 65 - 70?
Oh, and I did check the brakes I can easerly push it!
Chris
Omega TD not paperclippable.
Like many german cars, the BMW 2.5TDS engine does not often bring on EML when faults are detected, but simply stores them. The cynic in me says this is to improve perceived reliablity :-X
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[/quote]
Omega TD not paperclippable.
Like many german cars, the BMW 2.5TDS engine does not often bring on EML when faults are detected, but simply stores them. The cynic in me says this is to improve perceived reliablity :-X[/quote]
Bugger, In that case I'll go for another spin tomorrow and do more tests, do the Air and Fuel thing, and report back. wont being able to get the ECU read for a while. any thing I can specificly check for while Im driving it.
Thanks TB for you help.
Chris. (god, I cant type quick and spell at the same time)
Chris
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Bugger, In that case I'll go for another spin tomorrow and do more tests, do the Air and Fuel thing, and report back. wont being able to get the ECU read for a while. any thing I can specificly check for while Im driving it.
Thanks TB for you help.
Chris. (god, I cant type quick and spell at the same time)
Chris
pop the fuel filter off, check its full of fuel. Also worth filling fuel filter with diesel magic to clear out injectors...
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I normally take my 2.5TD Meggy for a good thrashing once in a while........ Anyhow decided to do the same with my ex missus today
Gotta be done! It would be rude not to!! :P
You did release the handbrake!?! ;D ;)
Check for dead things under the throttle pedal? ::) Seriously, not a mat wedged underneath?
How does it rev in neutral?
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Bugger, In that case I'll go for another spin tomorrow and do more tests, do the Air and Fuel thing, and report back. wont being able to get the ECU read for a while. any thing I can specificly check for while Im driving it.
Thanks TB for you help.
Chris. (god, I cant type quick and spell at the same time)
Chris
pop the fuel filter off, check its full of fuel. Also worth filling fuel filter with diesel magic to clear out injectors...
would you completly fill the filter with diesel magic, or 50/50???
KB
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I normally take my 2.5TD Meggy for a good thrashing once in a while........ Anyhow decided to do the same with my ex missus today
Gotta be done! It would be rude not to!! :P
You did release the handbrake!?! ;D ;)
Check for dead things under the throttle pedal? ::) Seriously, not a mat wedged underneath?
How does it rev in neutral?
Nice one, ;D ;D ;D, Gonna be taking Her for another ride this afternoon, I'll be a bit more gentle, I'll build the speed up slowly this time and see if I can get more out of Her! ;).
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Check fuel filter. Check air filter. Get the engine ecu read in case there are stored codes.
Ok, its never shown a EM light (according to a woman), if I do a paper clip test will that show me stored code's?
HEY we are not all bad(did you explain what and where the eml light was?)
Does it have a sports button and have you tried to see if there is any change when using it? if so i would sugest its a fuel snag.
Does not sound like a gearbox snag to me but then i am a woman!!!! lmao
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Check fuel filter. Check air filter. Get the engine ecu read in case there are stored codes.
Ok, its never shown a EM light (according to a woman), if I do a paper clip test will that show me stored code's?
HEY we are not all bad(did you explain what and where the eml light was?)
Does it have a sports button and have you tried to see if there is any change when using it? if so i would sugest its a fuel snag.
Does not sound like a gearbox snag to me but then i am a woman!!!! lmao
Yes, Orange EML at the Front and Diesel goes in at the Back (you dont thick she's Petrol in it??) .
Ok, seriuosly, She's quite a good driver so yea she knows what all those bulbs mean. To be honest I didn't try the Sports Button, will give it go, I was thinking about this last night and also thinking Fuel problem now (low fuel presure), I'll post some more later after I've taken IT for a spin.
Chris
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Mad any progress?
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Took it for another spin, Sport mode works fine, check for brake binding, no problems, never got round to the Air, Fuel filter and Diesel Magic thing (rang out of time), Gave it another good b*ll*cking seems to run as a underpowered BM 2.5TD does do, so no problems, but still wont do more than 70 Mph on the Mway.
A friend of mine, says check the Torque / Power by driving the car up a steep pavement / kerp from a stand still. (ie 90 degrees face on). So found a nice steep kerp and .. nothing it just rev'ed made lots of noise but wouldn't mount the pavement, so just to convince myself tried this with a normal kerb...same thing lots of noise but no joy?
Ok, so I need to take TB advice about F, A filter and diesel magic (which I havent done yet) but cant mount the kerp?,, Is this a loss of power from the engine or a gearbox problem?.. Im guessing this is related as to why the thing wont do more than 70!
The thing that confuses me is the trackter sounds and doe's what it should do at low to mediam rev's !
Any idea's
Thanks Chris.
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Just a wild guess but, a turbo diesel that is suffering a power loss? Is the turbo working?? Should be able to hear it wind up under load.
This might also explain why it is good at low revs but struggles when more power is required. :-/
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Just a wild guess but, a turbo diesel that is suffering a power loss? Is the turbo working?? Should be able to hear it wind up under load.
This might also explain why it is good at low revs but struggles when more power is required. :-/
Good point. Could be a wastegate stuck open or an intercooler hose split.
Kevin
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Please, please check auto fluid, level and colour, replace if dark brown in colour.
regards
richard
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mmm - AutoBox slip would be my my first port of call to check. Especially following the test on the curb.....
Check it asap...
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Hi again, ok, replaced fuel and air filter, filled the filter half with diesel and diesel magic, checked for any split pipes etc cant see anything, gone for a spin... still the same.
So, what do you think ? am I looking at a engine or gearbox prob?
Chris.
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Hi again, ok, replaced fuel and air filter, filled the filter half with diesel and diesel magic, checked for any split pipes etc cant see anything, gone for a spin... still the same.
So, what do you think ? am I looking at a engine or gearbox prob?
Chris.
So the 70mph bit, when it gets there, its just gutless, or is it revving, but not going any faster?
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(the 70 MPH thing), It gets there, it seems to drive fairley normal around town etc, if you hit the slip road on the Mway, it will pull as normal up to 65 - 70 without to much problems (lets face it there not the fastest things arround).
Ive only got my own 2.5 TD (manual) to compare it with, the only thing I can say is as before when you pull away from a stand still, seems to be slightly more noise than needed before it pulls off, but once its running its fine, Im sort of putting that as it being an Auto.
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Hi again (TB) prob did answer your question correctly, at 70 if assuming its in final, it will kick down obviously now reving but will change a couple of MPH, hard foot still, it will stay there in 3rd, ease off it will change up in final, try and gently speed up in top again a couple of MPH change but thats your lot.
????
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Do you have facility to measure boost pressure?
I'm thinking along lines of holed pipe post turbo...
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Not really, I could borrow the Boost Gauge from my cossie easy enough, but surely that would mean fitting a sender on the TD, or is there something already there that could be used?
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Not really, I could borrow the Boost Gauge from my cossie easy enough, but surely that would mean fitting a sender on the TD, or is there something already there that could be used?
dont have any friendly mechanics who can live data whilst driving?
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If you mean someone with a T 2 then no, there is VX masterfit near me but pretty much gave up with them years ago (how much should they charge to plug there box in)?
Actually I do know someone with a Opel Reader (would that work) but the last time spoke to him he couldn't get it to work on hes new Laptop.
Not sure if I wanna be spending lots of money on this (ex's Car) Tax was out last Friday, and MOT's up in March, starting to think maybe get a Mot done first and go from there, would still be nice to fix the fault though!.
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I know this is my first post (I'm looking for an lpg 2.5v6 to replace my passat tdi, and happened accross this thread so thought I'd register to help):
I can almost guarantee it's the MAF sensor based on the symptoms you describe.
They can usually be had on ebay for 20-100 depending on the application. If it doesn't solve it, I'll eat the replacement part.
Modified to add:
there is indeed on on ebay:
http://cgi.ebay.co.uk/Vauxhall-Omega-Diesel-MAF-Sensor-Mass-Air-Flow-BMW-525_W0Q...
Cheers
-keith
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I know this is my first post (I'm looking for an lpg 2.5v6 to replace my passat tdi, and happened accross this thread so thought I'd register to help):
I can almost guarantee it's the MAF sensor based on the symptoms you describe.
They can usually be had on ebay for 20-100 depending on the application. If it doesn't solve it, I'll eat the replacement part.
Modified to add:
there is indeed on on ebay:
http://cgi.ebay.co.uk/Vauxhall-Omega-Diesel-MAF-Sensor-Mass-Air-Flow-BMW-525_W0Q...
Cheers
-keith
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Valid point, but get codes read before splashing out on one. Or checking it actually has one (early TDs (U25DT) didn't have a MAF, only later X25DT)
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Thanks for your input Kieth, will look into it.
Just in case, need to know where you live and do you want me to bring a Knife and Fork.
Thanks for taking the time to register.
Chris
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Valid point, but get codes read before splashing out on one. Or checking it actually has one (early TDs (U25DT) didn't have a MAF, only later X25DT)
A failed MAF won't usually throw up a code for some reason (even though there is an error code for maf sensor).
To check you've got one- follow the 'airbox' hose back to the inlet manifold and it'll be along there somewhere.
have knife and fork, will travel, but hopefully won't be required.
no probs for registering, I know how saddening it can be to have a problem that just doesn't seem to get fixed!
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Valid point, but get codes read before splashing out on one. Or checking it actually has one (early TDs (U25DT) didn't have a MAF, only later X25DT)
A failed MAF won't usually throw up a code for some reason (even though there is an error code for maf sensor).
To check you've got one- follow the 'airbox' hose back to the inlet manifold and it'll be along there somewhere.
have knife and fork, will travel, but hopefully won't be required.
no probs for registering, I know how saddening it can be to have a problem that just doesn't seem to get fixed!
Yup, on the X25DT, it right by airbox, unmissable :y
The 2.5TD very,very rarely puts on the EML with faults, in true BMW style (gives a false impression that car is more reliable). Unplugging the MAF certainly doesn't bring on EML (forgot to plug it in on mine once :-[)
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More common is the inlet trunking becoming detached from the turbo.....
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More common is the inlet trunking becoming detached from the turbo.....
or holed as I suggested earlier, but it seems acceleration to 70ish is OK :-/
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did you get this fixed?