Did rear end collision cause damage to TCU? on 2007 Mercedes-Benz E320 BLUETEC

Was recently rear-ended. Got car fixed. Report there was a faint oil smoke smell and now the car goes into a type of limp mode when you accelerate to aggressively. Engine light is on. How can I prove the damage was caused by the rear end collision?

Asked by for the 2007 Mercedes-Benz E320 BLUETEC
You can have the symptom diagnosed by mercedes benz and if it was caused by the collision then go from there. If not caused by collision then get it fixed before the problem worsens and it turns into a Hyundai.
1 more answer
possibly it did