Nope. The ignition is changed for the right hand cars. It is on the right hand side of the column on LHD cars. see the picture of a LHD 300E on Ebay.de
Mercedes Benz 300 E (W124), originale 80.500 KM | eBay
Seem odd that they bothered to change that but nothing else !!
That goes at least as far back as the Ponton series ( and I think also the 300 Adenauer ) which may have been the first Mercs to have a steering lock and the ignition switch linked to the steering column ) , still had starter button in the 1950's so the ignition switch was only a switch . It has been a long time since I was in a 170 which was carried over from before the war , but I think the switch was mounted on the dash with no steering lock - could be wrong though as it has been about 20 years since I sat in one .
The other things that changed for RHD/LHD were column change gears , with the lever always on the inboard side of the column and shift pattern effectively becoming a mirror image : towards you and up for first , towards and down for second , away and up for third then away and down for fourth - it always used to amuse me to sit someone who had never seen one behind the wheel and watch as they fumbled without a clue . It must have been doubly amusing for a novice faced with column change and the Hydrak automatic clutch - with no clutch pedal - sadly , I have never had the pleasure of trying one although once sat as a passenger in one and remember the loud 'clunk' each time the gear lever was moved , operating the loud soleniod which engaged and disengaged the clutch . Column change automatic selectors for the old 'jerk-o-matic' transmissions found in the Fintails swapped sides too , always with Park uppermost , and the little window in the instrument panel to tell you which gear you were in .
The 'umbrella' handbrake under the dash on all pre '68 Mercs apart from the SLs would change sides too . If you were lucky enough to afford a hugely expensive RHD W113 Pagoda SL though , you had a long stretch across the transmission tunnel since the handbrake on this model never moved from its position on the left side of the tunnel where it flared around the bellhousing !
Many of the earlier Mercs had 'clap hands' wipers which did not need to be changed for LHD/RHD , but I think Merc at least swapped asymmetric wiper patterns round for RHD , unlike my 1976 Audi 100GL with its awful LHD wipers which left a large area in the upper right corner of the screen unswept ; not to mention the convoluted accelerator and brake linkages on some RHD VAG products of that era .
