Citroën C4 Grand Picasso Mk1 | Timing Belt & Water Pump Replacement (Step-by-Step DIY Guide)

Welcome to Dobby's Repairs!
Is your Citroën C4 Grand Picasso Mk1 due for a timing belt and water pump change? In this video, I’ll walk you through the full DIY replacement — made simple with tips, tricks, and diagrams.
In this step-by-step guide, I’ll show you how to replace the timing belt and water pump on a Mk1 Citroën C4 Grand Picasso.

This is a tricky job, but I’ll break it down with easy-to-follow tips, tricks, and diagrams. By the end of this video, you’ll feel confident tackling a DIY timing belt and water pump replacement — including the tensioner pulley and idler pulley.

👉 If you own a Citroën C4, Grand Picasso, or another PSA engine model, this video will help you save money and do the repair at home.

💬 Got questions? Leave them in the comments — I’ll be glad to help!

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Every tool and part in this video was purchased with my own money. You’re getting real-world experience, honest opinions, and DIY-friendly repair tips — no paid promotions.

⚙️ Tools & Equipment Used in This Timing Belt Replacement:

Sealey 3/8" Impact Gun →    • What’s In My Toolbox - Sealey CP1204 Impac...  

Sealey Cordless Ratchet →    • What's In My Toolbox – Sealey CP1202 3/8" ...  

E16 Socket →    • What's in my toolbox - OCGIG Torx Security...  

Draper Impact Wrench →    • What's in my toolbox - Draper Stormforce I...  

Torque Wrench →    • What's in my toolbox - autojack CTW38 Torq...  

T20 & T50 Socket →   • What’s In My Toolbox: Us.Pro Industrial 75...  

13mm & 16mm Spanner →    • What’s In My Toolbox :Sealey Premier AK632...  

Timing Kit (or drill bits alternative) → Video coming soon

1/2" & 3/8" Ratchets →    • What's In My Toolbox - Libraton 912104 Rat...  

18mm 1/2" Socket →    • What's In My Toolbox - Us.pro 1397 Deep Im...  

Socket Extension →    • What's In My Toolbox - United Tools 1954 I...  

Flat-Bladed Screwdriver & 7mm Allen Key →    • What’s In My Toolbox – Siegen Tools By Sea...  

7mm, 10mm, 13mm, 16mm & 19mm 3/8 Sockets →    • What’s In My Toolbox: US.PRO 3833 Impact S...  

Tack Lifter →    • worldwide 990 tool review #dobbyrepairs #t...  

No-Spill Funnel →    • What's In My Toolbox - No Spill Coolant Fi...  

Long Reach Pliers →    • What's In My Toolbox - long Reach Plier Set  

Jack & Axle Stands

Drain Pan

🔧 Dobby the Fixing Elf
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