Replace timing kit and valve oil seal for EA888 at 170000 kilometers

Your 2010 Tiguan is equipped with the second-generation EA888 engine from Volkswagen, which indeed has been known to experience higher-than-normal oil consumption, especially as the mileage increases. Additionally, issues with the timing chain tensioner are common in this series of engines.

You've made a good decision to bring your vehicle to the workshop on Saturday morning and have it serviced by Master Wang, who is well-versed in engine work. Here are some recommendations to ensure that the service goes smoothly:

1. **Detailed Communication**:

  - Before any work begins, discuss the specific issues with Master Wang, including the oil consumption and the timing chain tensioner problems.

  - Ask whether the timing chain and tensioner need to be replaced, along with an estimate for the cost.

2. **Service Order**:

  - Review the service order that Master Wang prepares, ensuring you understand each item and its necessity.

  - Inquire about alternative options or more cost-effective solutions if available.

3. **Part Quality**:

  - Confirm that the parts used will be genuine or high-quality replacements.

  - Ask if there is a warranty provided for the parts and labor.

4. **Progress Updates**:

  - Since you plan to drop by occasionally over the next few days, this will help you stay updated on the progress.

  - If possible, also keep in touch with Master Wang via phone or messaging to get regular updates.

5. **Ongoing Maintenance**:

  - Seek advice from Master Wang regarding routine maintenance, such as oil change intervals and how to monitor oil consumption.

  - Understand any post-repair considerations, such as a period of observation after the repairs are completed.

I hope these suggestions are helpful. Best wishes for a successful repair and a pleasant journey! If you have any further questions or need additional assistance, feel free to let me know.