car dropping out of gear going along

[spookycat]

hopefully someone can help me out
i drive a clk320 auto 2001,sometimes while going along the road or at stand still,
the car seems to lose gear like its in neutral just revs even though its still in d mode it cures its self if i switch off and restart could it be the maf at all car has done 200,000 miles many thanks

 

[nb_racing]

Most likely low gearbox oil level. When was is last changed? Very important to keep on top of it.

 

[spookycat]

not sure when it was changed have only owned car for a few weeks but can i just top up the atf without a full fluid change

 

[BlackC55]

Fix the leak and change the ATF. That's the best result.

 

[spookycat]

could it be the crank sensor causing it as well the car drove perfect for 3 days with no issues then it just revved and engine light came on i let it cool down and engine light has gone out

 

[AMGeed]

^ That's not a symptom of a failing CPS. Failing to start a hot/warm car is CPS fault.

Get someone to look at it before throwing money and parts at it.

 

[gegs88]

Mine was doing exactly the same m8.
Low atf in the box, it was leaking from the multiplug in the autobox and weeping at the cooler pipe. A local indie sorted mine for around £250 including a run on diagnosis and a couple of other little bits......
Eventually you will lose the gears all together and restarting won't help.