2.5Td Auto wont go more than 70Mph!!

[zirk]

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.

[Danny]

speed limit is 70mph

nothing's wrong

[zirk]

speed limit is 70mph

nothing's wrong

Yea, right, tell that to my MV6.

[tunnie]

is it hitting the red line? gearbox not changing up?

[zirk]

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.

[TheBoy]

is it ok getting to 70.  is it smoking badly?

[zirk]

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.

[TheBoy]

Check fuel filter. Check air filter. Get the engine ecu read in case there are stored codes.

[zirk]

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

[TheBoy]

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  

[zirk]

[/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  [/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

[TheBoy]

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...

[davlad22]

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!!  

You did release the handbrake!?!  

Check for dead things under the throttle pedal?   Seriously, not a mat wedged underneath?

How does it rev in neutral?

[kbou55]

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

[zirk]

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!!  

You did release the handbrake!?!  

Check for dead things under the throttle pedal?   Seriously, not a mat wedged underneath?

How does it rev in neutral?

Nice one,   , 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!  .