Over time, Opel Astra H owners may experience reduced engine performance and slow acceleration. This not only affects driving comfort but also increases fuel consumption.

Symptoms

• Car struggles on inclines
• Delayed acceleration response
• Engine revs high but poor acceleration
• Black smoke from exhaust

Possible Causes

• Boost leaks in turbo hoses
• Dirty/clogged air filter
• EGR valve clogged with carbon
• Clogged fuel filter
• Faulty injectors

Solutions

• Check turbo hoses for leaks
• Replace air and fuel filters
• Clean or replace EGR valve
• Test and replace injectors if needed

Advice

Ignoring power loss can damage the turbo and engine.