S320 transmission/ power

[Chas]

I took my S320 (2001) out for a run yesterday ( not used a lot) and this morning, exactly the same problem occured on both occasions.

Driving around 30/40 mph through the village for 5 mins, enter dual carriageway increase speed up to 55/60 mph, revs shoot up to 5000/6000 , car feels like its in neutral -no increase in speed, brake to pull over, as speed decreases back to around 40 mph revs back to normal and transmission back to normal. It has a full MB service history ( April 2012 the latest ) 92k on the clock.
No errors flashing up, could it be a gearbox or sensor problem?

Many thanks

 

[television]

The box level never gets checked on any service, If the pilot bush has been leaking, then the level could be down, if MB serviced then the gear box fluid has never probably been changed.

 

[Chas]

Thanks Malcolm, is it easy to check the fluid level?

 

[television]

Yes, with a length of curtain wire where the level should be 7cm when the engine is hot and engine running and parked up in P

 

[Chas]

I stuck a curtain wire in for about 60 cm Malcolm with engine running. Cant see any sign of fluid when I remove it ? Is 60cm long enough, I pushed it in as far as I could?

Thanks

Just looked at this one which is 120 cm long !
http://toolstoday.co.uk/shop.php?sec=prod&prod=58294

I will try 120cm length and see

cheaper one here http://www.ebay.co.uk/itm/MERCEDES-...017?pt=LH_DefaultDomain_3&hash=item43b7279f31

 

[malcolm E53 AMG]

Hi Chas,
The length of curtain wire needs to go down to the bottom of the G/B sump which requires more than 60cm, probably more like 1m. If you carefully feed the wire down you will feel when it hits the bottom.

 

[Chas]

There is fluid when I checked, it wasnt an accurate reading as the fluid was about 6 inches intermittent on the wire , I will check level properly with the dipstick tool when I get one Thanks for your help Malcolm, have a Happy New Year

 

[television]

6" is double what should be in there

 

[Chas]

It will be a lot less I am sure, the indication on the wire wasnt accurate enough....

 

[television]

At least there is some in there