ZF Group Reviews 

I wish I could give them 0 stars.

I have been looking for the parts ZF 7646-955-614 and ZF 6006 022 003 6WG120/180 for months now, and our Coles Cranes 620 is currently unable to operate.

I was told ZF sold the branch that used to produce those parts to Bosch. I have contacted Bosch, but I still have not received any help.

How can companies behave like that? You invest in buying a crane, and now you can't use it because of the parts.
We made a significant investment in this equipment, and it is unacceptable that it cannot be used due to unavailable parts. This level of service is extremely disappointing.

I would not recommend anyone buy a machine with ZF components.

ZF group own Lemforder, thought i was buying German quality, just received an engine mount and its made in China. I'll install it and see if it lasts, but looks poor quality compared to the genuine Mercedes one I have, so clearly not OEM to Mercedes as I was lead to believe.

ZF trade in UK as Brake Engineering. I used to have an account with them years ago. I tried to buy from them again and was refused to deal direct and was pointed in direction of local stockists who were as much use as *!*! the second one ''Bennetts'' lying to Brake Engineering. I suggest they all get their act together - rather very short sighted business philosophy from a company which has lost some £500,000 over last 2 financial years.

I purchased a new Sachs/ZF flywheel to replace my original dual mass flywheel (DMF), and unfortunately, the experience has been disappointing.

After installation, I noticed a squeaking noise during operation that disappeared when I reinstalled my original 200,000 km flywheel. Even more frustrating, the old one showed less rotational play than the new Sachs unit — despite its mileage.

I returned the part to ZF for testing, but they claimed no internal defect was found and that everything was “within tolerance.” However, real-world symptoms — noise under load, sloppy movement, and clear behavioral differences — were dismissed.

I expected better quality control from a major manufacturer. I’ve lost both time and money trying to resolve this issue. If you're buying a Sachs flywheel, test thoroughly before trusting it, and don’t assume that factory testing will validate real-world problems.