What happened to our Audi A6 3.0 TDI V6 diesel vehicle will unfortunately surprise you. The customer who felt that there was something wrong with his vehicle went to the industrial site, after having the engine oil and filters changed, namely periodic maintenance done, he got stuck on the road on the Kartal Bridge, leaving Bostancı. Then, when he went to the mechanic again, he said, "Leave it alone brother" and left the vehicle, then the mechanic called and said, "This car's engine is locked, you need to buy a new engine" or "This car can't be sold like this" and offered 400,000 TL. Our customer, who was extremely affected by this situation, finally had the vehicle towed to us, saying, "What kind of scammers have I fallen into the hands of?" When the vehicle came to us, there was no electricity. The battery was flat, we added a booster but the engine did not turn. When we took it inside and disassembled it, there were high costs that did not expect the customer. Be sure to know where you are going and leave with your eyes closed, otherwise, your job is difficult in the industries during this period. The vehicle's turbo was broken, the injectors were sold for 40 thousand liras as brand new, but used injectors were installed. We opened the engine from top to bottom when we reached the crank section, we saw that the bearings wrapped on the crank and damaged the piston rods. So why did this happen? Since the engine oil pump pressure dropped, the engine, which could not provide sufficient lubrication, unfortunately, wrapped the bearing or the crank. What does an oil pump do? To minimize the friction force between metals. To prevent the metals from overheating as it reduces the friction force. Since lubrication continues, the engine interior does not corrode. Stabilization of lubrication is related to noise in the engine. Lubrication ensures that the thrusters in the engine work properly. What Happens If the Oil Pump Fails? The oil pump is like the heart of a car. It pumps oil into the engine in proportion to the crankshaft speed. When the oil pump fails, the engine cannot make oil speed. The vehicle's oil light comes on. Drivers who do not notice this do not stop their vehicles and continue on their way. There are bearings that provide the movement of the crankshaft in the part where the pistons are connected to the crankshaft. The oil does not reach the bearings and the vehicle becomes bearing-wound. The sound of your engine changes. If the engine continues to run like this, the piston rod will come out of the crankshaft and puncture the block. While your engine can be repaired with an overhaul as a result of bearing seizure, if the rod comes out, that is, the block is punctured, the engine will need to be replaced. Although the block can be repaired, it does not last very long. For this reason, when you see the oil light on the dashboard while driving, you should immediately pull over and check the vehicle's oil level. If your vehicle's oil is low, it should be topped up, but if it is full, it is a failure of the oil pump. The vehicle should never be started. A tow truck should be called.