It definately isn't Deutsch. All Deutsch connectors use round pins and sockets. Deutsch also usually includes their name and part number on the housings.
The logo is not any I recognize but I'm not that familar with European car connectors.
I got several hits searching for 872 406-501 but none ientified the manufacturer. I thought 7507527.9 might be a DIN standard but didn't get a hit.
Automotive connectors are tough to find because the manufacturers deal directly with the auto manufacturer and have little or no distribution. They have thousands of SKUs they build to order and will design a new connector if the manufacturers want something they don't have.
As an example, at my former employer a customer wanted us to but some Sumitomo and Yazaki parts to supply a few hundred harnesses per year. None of the connectors were in stock and a few we couldn't even get samples or even datasheets. The lead time was 20 weeks with minimum order of 4,000 to 5,000 housings and 20,000 to 40,000 terminals.
It ended up being about $50,000 of inventroy and was enough for several years production. Unforunately the actual quantity was much lower the estimate and was only needed for 3 years. The customer ended up having to buy much of the inventory.