Audi A4 2.0l engine replacement
A shop replaced the engine in an Audi A4 2.0 after over-revving broke a rocker arm and dropped a valve into the cylinder. A used engine was chosen as the only affordable way to keep the car running.
- The Audi A4 2.0 is generally a reliable engine, though known issues include high pressure fuel pump failures and camshaft drive lobe problems. The damage here came from over-revving, not a factory defect.
- During the swap, some parts had to be transferred from the original engine because they were broken or missing on the replacement. Defective sensors and a faulty wiring harness were also discovered after installation.
- Used engine swaps can make final costs harder to predict until the job is done. The shop tries to be upfront with customers about expecting a few hundred dollars in possible additional expenses.
When replacing an Audi A4 2.0L engine with a used unit, common issues include defective sensors and wiring harnesses that can only be detected once the engine is running. Parts may also need to be transferred from the original engine. These variables make the final cost difficult to predict, often adding a few hundred dollars in extra expenses.
The Audi A4 2.0 is generally a very reliable engine. They have had some problems with their high pressure fuel pumps and the associated camshaft drive lobe, but the motors themselves, like their 1.8l predecessors are pretty reliable. This particular engine was over reved and broke a rocker arm and dropped a valve down into the cylinder. The cost to rebuild the engine so we found a used Audi A4 2.0 engine to replace the existing one. We don’t often use used parts, but it was the only way to economically keep this car on the road. As is typical with used engine swaps, we had to transfer some of the parts from the current engine because they were broken or missing on the “new” engine. We also found after the engine was installed that a couple of the sensors and the wiring harness for the replacement engine were defective. These of course would have been easier to replace on the engine stand, but there is no way to test them until we have the engine in the car and running. These sorts of variables with used parts can make the cost harder to pin down until the project is complete. We always try to be upfront about these potential cost variables and make sure we tell the customer to expect a few hundred dollars worth of additional expenses for this extensive Audi Repair.