Skip the auto shop - Our mechanics make house calls

Q: Transfer case won't shift into gear - 2002 Mercedes Benz G500

asked by on

I have a 4 wheel drive and my transfer case won’t shift into gear. It doesn’t happen all the time though. Sometimes it works perfectly, and then my rear wiper won’t work or the tow away button won’t engage. And when these happen my truck will not shift gears either. Then I will be stuck in first gear. I don’t ever know when it’s going to happen either. When I’ve taken it to the dealership to be checked out they don’t find anything wrong. I’ve checked the fuses for the transmission, electronics, transfer case, alarm, etc. and everything is OK. I’m wondering if it might be the relay. Then one time I was driving real slow in the neighborhood, and I pushed the rear wiper and the lights lit up, and the car shifted gears. I just can’t figure this out, and it’s driving me nuts. Do you have any suggestions?

A: There seems to be a deep electrical bug in ...

There seems to be a deep electrical bug in the vehicle and unfortunately these problems require a case study of the vehicle. Some facilities will offer the service where they will keep the vehicle overnight and drive it in an attempt to have the problem show up. Intermittent problems like these can be caused by unseen corrosion inside of relays and circuit in control modules. Each circuit must be inspected down to the wiring.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car abruptly stops in traffic, but engine still on - 2016 Subaru WRX

Hello. There may be a problem in your drivetrain causing such a hard stop. If your brakes were serviced recently, check to see if a fastener may have come loose and is causing the caliper to press against the wheel...

Q: Car losing power, shaking, and sputtering.

Leaving the gas cap off wont usually cause drivability concerns. Its function is basically to keep fuel vapors where they belong. If left off it often triggers a check engine light, but nothing more. Notice how I said "usually" in...

Q: Voltage drop noticed during night driving. The headlights dim and then return to normal.

This may be a sign of a failing voltage regulator or potentially a bad ground connection. As you may know, the voltage regulator regulates the charging of the battery by the alternator. When the voltage regulator is not working properly,...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.