Top Tether
The Mercedes E-Class (4th generation W212, 2009–2016) offers additional protection for children in the vehicle with the Top Tether system. This article explains how it works and how to correctly install the Top Tether strap. This significantly reduces the risk of injury in an accident. Discover how Mercedes-Benz guarantees safety at the highest level.
Introduction
Top Tether provides an additional connection between the ISOFIX-mounted child restraint system and the vehicle. This can further reduce the risk of injury. If the child restraint system has a Top Tether strap, always use it.
Important Safety Notes
WARNINGIf the rear seat backrests are not locked, they can fold forward in an accident, during braking maneuvers or during sudden changes of direction. As a result, child restraint systems cannot protect as intended. Unlocked rear seat backrests can also cause additional injuries, for example in an accident. There is an increased risk of injury or even risk to life!
Always lock the rear seat backrests after installing the Top Tether straps. Be sure to observe the locking indicator. Set the rear seat backrests upright.
If the rear seat backrest is not engaged and locked, this is shown in the multifunction display of the instrument cluster. A warning tone also sounds.
Top Tether anchorages
SedanThe Top Tether anchorages are installed in the rear behind the outer head restraints.


The head restraint
push up.
The cover
Install the ISOFIX child restraint system with Top Tether. Be sure to observe the installation instructions from the child restraint system manufacturer.
Route the Top Tether strap
Hook the Top Tether hook
into the Top Tether anchorage
.
Make sure the Top Tether strap
Route the Top Tether strap
Tighten the strap. Be sure to observe the installation instructions from the child restraint system manufacturer.
The cover
If necessary, push the head restraint
down slightly again. Make sure the Top Tether strap
is not obstructed along its path.
Estate (T-Model)
The Top Tether anchorages are installed


The head restraint
push up.
Remove the double sunblind
Install the ISOFIX child restraint system with Top Tether. Be sure to observe the installation instructions from the child restraint system manufacturer.
Route the Top Tether strap
Hook the Top Tether hook
into the Top Tether anchorage
at the back of the rear seat backrest
.
Make sure the Top Tether strap
Route the Top Tether strap
Tighten the strap. Be sure to observe the installation instructions from the child restraint system manufacturer.
If necessary, push the head restraint
Remove the double sunblind
.
The Top Tether system of the Mercedes E-Class W212 (model years 2009–2016) provides additional protection for children through a secure connection between the child seat and the vehicle body. This device significantly reduces the risk of injury in an accident.
Whether sedan or estate (T-Model), the clearly defined anchorage points and simple operation of the Top Tether system underline the E-Class's safety level for the youngest passengers.
This makes the Mercedes E-Class the ideal family vehicle, with attention to safety down to the smallest detail.
Test yourself
A quick Mercedes-Benz E-Class quiz: every answer comes with an explanation and a link to the manual page.