100% Free

No Scanner Needed

Carly logo
Prices

tom_kaiser6

G Klasse transfer case issue

My 2007 Mercedes G Klasse with the gasoline engine is acting up. It has about 123338 km on it. The transfer case seems stuck in limp mode. It feels like the gearbox is slipping or shifting super rough. I'm reading that it might be connected to the ABS. If there's a problem there, does it mess with the torque converter and transfer case? I'm seeing some diagnostic trouble codes that point that direction too. My traction control light is also on. Has anyone seen this before?

Summary of the thread

A 2007 Mercedes G Klasse experienced issues with the transfer case being stuck in limp mode, rough shifting, and a traction control light. The problem was suspected to be linked to the ABS system, potentially affecting the torque converter and transfer case. It was advised to conduct a thorough diagnostic assessment, focusing on the communication between the ABS module, ECU, and transfer case control module, as well as checking the wheel speed sensors. The issue was resolved by replacing a faulty ABS sensor, which cleared the codes and restored normal function without any cost.

Did this summary help you solve your problem?

4 comment(s)

annasturm4

I am familiar with the G Klasse and have encountered similar issues. A malfunctioning ABS system can indeed cause consequential faults that affect the transfer case operation. This is due to the integrated nature of the traction control and stability systems, which rely on ABS data for proper function. The gear selector might also be implicated if the system is detecting inconsistencies. It's necessary to perform a thorough diagnostic assessment to identify the root cause.

tom_kaiser6 (community.author)

So, when you say 'thorough diagnostic assessment', what exactly are you suggesting? Are there specific things I should tell the mechanic to look for beyond just pulling the diagnostic trouble codes? I want to be armed with as much info as possible before they start tearing things apart.

annasturm4

I can confirm that ABS faults can lead to transfer case problems. I recommend asking the workshop to specifically investigate the communication between the ABS module, the engine control unit (ECU), and the transfer case control module. Also request a check of the wheel speed sensors and their wiring, as these are critical for ABS operation and can trigger the issues you are experiencing. A scan for any stored or pending diagnostic trouble codes related to these systems is essential. Ultimately, professional diagnosis with appropriate tools is unavoidable.

tom_kaiser6 (community.author)

You were spot on! I took it to the shop, and it was a faulty ABS sensor throwing everything off. They replaced the sensor, cleared the codes, and the transfer case is back to normal. Traction control light is gone too. Absolutely zero cost! Thanks again for the insight!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

MERCEDES

community_crosslink_rmh_model

GKLASSE