Introduction

If there is one known weak point on the EA113 2.0 TFSI platform, it is the cam follower that drives the High Pressure Fuel Pump (HPFP).

Ignored long enough, this tiny component can:

• Destroy the HPFP

• Damage the intake camshaft

• Contaminate the engine with metal debris

• Turn a simple service job into a full engine rebuild

Yet many tuned and even stock EA113 cars run for years without inspection.

This guide explains why cam followers wear, how to inspect them, symptoms of failure, and how to prevent expensive damage.

What the Cam Follower Does

EA113 engines use a cam-driven HPFP.

• The intake camshaft lobe pushes the cam follower

• The follower drives the HPFP piston

• The pump generates 110–130 bar fuel pressure

This means metal-to-metal contact under constant high load.

No follower = no pump = no fuel pressure = engine damage.

Why Cam Followers Wear

Causes of accelerated wear:

• Higher fuel demand from tuning

• Increased HPFP piston load

• Long oil change intervals

• Incorrect oil viscosity

• Poor-quality engine oil

• High sustained RPM operation

K04 and Stage 2+ cars naturally stress the follower more — but even stock cars are not immune.

Symptoms of a Worn Cam Follower

Early stage:

• No visible symptoms

• Rail pressure slightly inconsistent in logs

Advanced wear:

• Hard starting

• Fuel pressure fault codes (P0087 / P2293)

• Loss of power under load

• Metallic ticking noise

• Black coating worn through on follower

Catastrophic stage:

• Hole worn through follower

• HPFP piston contacts cam lobe

• Camshaft damage

• Metal debris in oil system

At this stage, repair costs escalate rapidly.

Inspection Interval

Safe inspection intervals:

• Stock cars: every 40,000–50,000 miles

• Tuned or K04 cars: every 15,000–20,000 miles

Inspection is simple:

• Remove HPFP

• Pull follower

• Visually inspect coating thickness

A healthy follower has a smooth black DLC coating.
Any wear through the coating means immediate replacement.

Prevention Strategy

• Use high-quality 5W-40 fully synthetic oil

• Change oil regularly

• Inspect follower before tuning

• Replace as preventative maintenance

• Monitor fuel rail pressure logs

A £30 follower protects a £3,000 engine.

The Takeaway

Every EA113 owner should know about the cam follower.

It is small.
It is cheap.
It is critical.

Inspect it — or pay for it later.

Need a Health Check on Your EA113?

• Cam follower inspection

• HPFP health checks

• Fuel pressure logging

• Pre-tuning safety inspection

📧 admin@precisionremapsuk.com
📱 WhatsApp: +44 7822 013093