Mercedes W220 can't open door with remote

[Min2xx]

Have big problem with this MB model w220 2000 big fish key. Remote not work, but if I put key in EZS, remote work Ok, can lock and unlock car. Lock car and after some time, remote not work again. I make another key, but have same problem.

[leandroks]

U probably have a ezs issue. if u have anoter one just swaP it.

[hptophuc]

U need check the antena ....

[Min2xx]

When I put key in EZS and get it out, all work Ok, open and close car in 20 m. It's not antenna problem.

[mercis]

eis problem hc705 inside?

[Min2xx]

Yes, HC705 and very difficult to read. Read 100 times and only one was successful. I made new keys for it.

[mercis]

ak400 read easy

[Min2xx]

Tested with carprog, upa, xprog all orginal and cant read. Read xprog 1 time, after 100 testing :) What I can do with this problem?

[mercis]

swap eis with old dump

[Min2xx]

I can't find new, used eis. Big problem for this car.

[mercis]

send partsnumber

[Min2xx]

Not have now. In Tuesday will remove from car.

[Min2xx]

EZS worked till now, today do not open doors again. fault code "EZS faulty" 1000. Part No 215 545 00 08