CODE READER SHOWS FAULT CODE P0025 - 2006 Mercedes-Benz CLS-Class

Camshaft Position B - Timing Over-Retarded (Bank 2)
codes are OBDll and are available online free
Google P025

copy and paste
https://www.yourmechanic.com/article/p0025-obd-ii-trouble-code-camshaft-position-b-timing-over-retarded-bank-2-by-jay-safford

Likely a transmission code the reader cant see. Suggest you try a better $$$ reader.

You need to have the fault codes reads, this is referred to as an OBD2 fault code test, you will need a code reader.

First one is shorted rough road detection sensor, second one is anti theft sensor

this may help. A code P0025 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0025 DTC specifically refers to the camshaft (cam) timing In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. The "B" camshaft is either the exhaust, right, or rear camshaft. Bank 2 is the side of the engine that does not contain cylinder #1. This code is nearly identical to P0022.
Potential Symptoms Most likely a P0025 DTC will result in one of the following:

• hard starting
• poor idle and/or
• stalling

There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
Causes A P0025 DTC trouble code may be caused by one or more of the following:

• Incorrect camshaft timing
• Wiring problems (harness/wiring) in intake timing control valve control solenoid system
• Continuous oil flow to VCT piston chamber
• Failed timing valve control solenoid (stuck open)

Possible Solutions The main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCT solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit. Notes: Dealer techs have advanced tools and the ability to follow detailed troubleshooting steps, including the ability to test components using a scan tool.

this page offers possible solution.
P0025 Camshaft Position Timing Over Retarded Bank 2

No fault code set? Try the key dance: ignition switch off/run three times and leave in run at third time. Odometer shows Done when no faults, or a fault code(s).
The evap test runs automatically and checks for leaks in the evaporative control system.

replace the speed sensor as it controls the shifting of the transmission. When replacing any units the fault s will continue to reappear unless you have the CPU reset by a fault code reader.

If you want to know this fault code reader, please link http://www.careucar.com/wholesale/autoscanner-obdii-eobd-fault-code-reader-u912-updated-by-internet.html

change ur oxygen sensor on bank two