# 1999MB 320 4Matic trans

**URL:** <https://community.cartalk.com/t/1999mb-320-4matic-trans/62099>\
**Category:** Maintenance/Repairs\
**Tags:** mercedes-benz, e-class\
**Created:** [March 2, 2011, 3:57pm UTC](https://community.cartalk.com/t/1999mb-320-4matic-trans/62099 "2011-03-02T15:57:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Leif528](https://avatars.discourse-cdn.com/v4/letter/l/cdc98d/32.png) [@Leif528](https://community.cartalk.com/u/Leif528)\
**Post date:** [March 2, 2011, 3:57pm UTC](https://community.cartalk.com/t/1999mb-320-4matic-trans/62099/1 "2011-03-02T15:57:33Z")

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Stopped at a light went to start heard a loud bang car became motionless any thoughts?  
  
 Trans has 60k and never a shifting issue.

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**Author:** ![Honda-Blackbird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/honda-blackbird/32/3159_2.png) [@Honda-Blackbird](https://community.cartalk.com/u/Honda-Blackbird)\
**Post date:** [March 2, 2011, 5:24pm UTC](https://community.cartalk.com/t/1999mb-320-4matic-trans/62099/2 "2011-03-02T17:24:24Z")

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Could be a broken U-joint…you need a looksee… On your vehicle I believe the driveshafts are tucked WELL under your car…pretty much impossible to spot…however if you can see it hanging down…then you def have a broken u joint…that would disable your vehicle in one fell swoop as I believe the 4wd system is all tied together…a broken u joint would also disable the front wheels from being powered. Other than that…you could have torque convertor issues…but the bang points to catastrophic u-joint failure usually…